The factorization of generalized Fermat numbers (k+1)^2^n + k^2^n < 10^60 2^2^1 + 1^2^1 = 5 2^2^2 + 1^2^2 = 17 2^2^3 + 1^2^3 = 257 2^2^4 + 1^2^4 = 65537 2^2^5 + 1^2^5 = 641 * 6700417 2^2^6 + 1^2^6 = 274177 * 67280421310721 2^2^7 + 1^2^7 = 59649589127497217 * 5704689200685129054721 3^2^1 + 2^2^1 = 13 3^2^2 + 2^2^2 = 97 3^2^3 + 2^2^3 = 17 * 401 3^2^4 + 2^2^4 = 3041 * 14177 3^2^5 + 2^2^5 = 1153 * 1607133116929 3^2^6 + 2^2^6 = 769 * 121899667073 * 36629538145348481 4^2^1 + 3^2^1 = 5 * 5 4^2^2 + 3^2^2 = 337 4^2^3 + 3^2^3 = 17 * 4241 4^2^4 + 3^2^4 = 4338014017 4^2^5 + 3^2^5 = 11969 * 1541364950613953 4^2^6 + 3^2^6 = 337153 * 1009281751473729386230842057136129 5^2^1 + 4^2^1 = 41 5^2^2 + 4^2^2 = 881 5^2^3 + 4^2^3 = 17 * 26833 5^2^4 + 4^2^4 = 4801 * 32677121 5^2^5 + 4^2^5 = 641 * 5953 * 59925889 * 101900353 5^2^6 + 4^2^6 = 1699132282369 * 319046040234900998188151306914049 6^2^1 + 5^2^1 = 61 6^2^2 + 5^2^2 = 17 * 113 6^2^3 + 5^2^3 = 2070241 6^2^4 + 5^2^4 = 2973697798081 6^2^5 + 5^2^5 = 193 * 577 * 645313 * 9104321 * 12199937 6^2^6 + 5^2^6 = 257 * 1189782673537 * 207149065298675818568214979118531969 7^2^1 + 6^2^1 = 5 * 17 7^2^2 + 6^2^2 = 3697 7^2^3 + 6^2^3 = 353 * 21089 7^2^4 + 6^2^4 = 36054040477057 7^2^5 + 6^2^5 = 257 * 4328351499431389288675841 7^2^6 + 6^2^6 = 1441838081 * 45814876214017 * 18466054092468533735568034082561 8^2^1 + 7^2^1 = 113 8^2^2 + 7^2^2 = 73 * 89 8^2^3 + 7^2^3 = 17 * 1326001 8^2^4 + 7^2^4 = 314707907280257 8^2^5 + 7^2^5 = 33857 * 1347511751681 * 1760802861761 8^2^6 + 7^2^6 = 1153 * 257921 * 865537 * 186270593 * 130947618578460692408608101578574209 9^2^1 + 8^2^1 = 5 * 29 9^2^2 + 8^2^2 = 10657 9^2^3 + 8^2^3 = 577 * 103681 9^2^4 + 8^2^4 = 193 * 1217 * 16001 * 567937 9^2^5 + 8^2^5 = 3512911982806776822251393039617 10^2^1 + 9^2^1 = 181 10^2^2 + 9^2^2 = 16561 10^2^3 + 9^2^3 = 17 * 1249 * 6737 10^2^4 + 9^2^4 = 97 * 2689 * 45442946977 10^2^5 + 9^2^5 = 9601 * 55861633561729 * 192855438828289 11^2^1 + 10^2^1 = 13 * 17 11^2^2 + 10^2^2 = 41 * 601 11^2^3 + 10^2^3 = 113 * 2781937 11^2^4 + 10^2^4 = 97 * 3617 * 159469543489 11^2^5 + 10^2^5 = 2211377674535255285545615254209921 12^2^1 + 11^2^1 = 5 * 53 12^2^2 + 11^2^2 = 17 * 2081 12^2^3 + 11^2^3 = 113 * 5702129 12^2^4 + 11^2^4 = 929 * 2689 * 262369 * 352193 12^2^5 + 11^2^5 = 449 * 80831997464815383957493223207873 13^2^1 + 12^2^1 = 313 13^2^2 + 12^2^2 = 49297 13^2^3 + 12^2^3 = 17 * 73277201 13^2^4 + 12^2^4 = 120833 * 780193 * 9019553 13^2^5 + 12^2^5 = 476961452964007550415682034114910337 14^2^1 + 13^2^1 = 5 * 73 14^2^2 + 13^2^2 = 66977 14^2^3 + 13^2^3 = 17 * 134795281 14^2^4 + 13^2^4 = 203617 * 13964305274081 14^2^5 + 13^2^5 = 193 * 25537 * 10705153 * 58700051713 * 1674540815873 15^2^1 + 14^2^1 = 421 15^2^2 + 14^2^2 = 89041 15^2^3 + 14^2^3 = 17 * 97 * 2449169 15^2^4 + 14^2^4 = 8746361693522261761 15^2^5 + 14^2^5 = 11329 * 14657 * 60353 * 3439297 * 111662081 * 12442594817 16^2^1 + 15^2^1 = 13 * 37 16^2^2 + 15^2^2 = 17 * 6833 16^2^3 + 15^2^3 = 19009 * 360769 16^2^4 + 15^2^4 = 257 * 51447329 * 1891939297 16^2^5 + 15^2^5 = 193 * 577 * 3443093679549729105914863949003521 17^2^1 + 16^2^1 = 5 * 109 17^2^2 + 16^2^2 = 149057 17^2^3 + 16^2^3 = 1009 * 11170193 17^2^4 + 16^2^4 = 257 * 577 * 5281 * 16993 * 5042881 17^2^5 + 16^2^5 = 193 * 10433 * 1344972018183337998006266934360193 18^2^1 + 17^2^1 = 613 18^2^2 + 17^2^2 = 233 * 809 18^2^3 + 17^2^3 = 17995718017 18^2^4 + 17^2^4 = 577 * 769 * 7047457 * 54396577 18^2^5 + 17^2^5 = 193 * 449 * 4131025280257 * 47810948556918361424513 19^2^1 + 18^2^1 = 5 * 137 19^2^2 + 18^2^2 = 17 * 13841 19^2^3 + 18^2^3 = 1361 * 1553 * 13249 19^2^4 + 18^2^4 = 97 * 1529249 * 2763171170369 19^2^5 + 18^2^5 = 193 * 507492273439627745630601554889674601409 20^2^1 + 19^2^1 = 761 20^2^2 + 19^2^2 = 41 * 73 * 97 20^2^3 + 19^2^3 = 17 * 17 * 147347969 20^2^4 + 19^2^4 = 86209 * 10947829270350209 20^2^5 + 19^2^5 = 449 * 1141860086104426442386255983308556612289 21^2^1 + 20^2^1 = 29 * 29 21^2^2 + 20^2^2 = 113 * 3137 21^2^3 + 20^2^3 = 17 * 3730756433 21^2^4 + 20^2^4 = 129793 * 16071195597928897 21^2^5 + 20^2^5 = 52753460092876993 * 46935755545539904474067137 22^2^1 + 21^2^1 = 5 * 5 * 37 22^2^2 + 21^2^2 = 41 * 10457 22^2^3 + 21^2^3 = 17 * 113 * 48255457 22^2^4 + 21^2^4 = 4441930186581050471617 22^2^5 + 21^2^5 = 37889 * 347329 * 512236801 * 1648836744864293624130497 23^2^1 + 22^2^1 = 1013 23^2^2 + 22^2^2 = 17 * 30241 23^2^3 + 22^2^3 = 308017 * 432401 23^2^4 + 22^2^4 = 257 * 673 * 3041 * 328481 * 52924897 23^2^5 + 22^2^5 = 46677208572152524490331633250547044320123137 24^2^1 + 23^2^1 = 5 * 13 * 17 24^2^2 + 23^2^2 = 193 * 3169 24^2^3 + 23^2^3 = 188386299457 24^2^4 + 23^2^4 = 203873 * 280001 * 319686415969 24^2^5 + 23^2^5 = 2482987185473 * 74273558983331655960352420017089 25^2^1 + 24^2^1 = 1201 25^2^2 + 24^2^2 = 137 * 5273 25^2^3 + 24^2^3 = 17 * 15450776753 25^2^4 + 24^2^4 = 16284449 * 2173830944868449 25^2^5 + 24^2^5 = 3200994501889 * 4886618497153 * 44042370272332781953 26^2^1 + 25^2^1 = 1301 26^2^2 + 25^2^2 = 847601 26^2^3 + 25^2^3 = 106321 * 3399281 26^2^4 + 25^2^4 = 97 * 258815489 * 2664470596897 26^2^5 + 25^2^5 = 257 * 18433 * 151553 * 3403895042406826213217398689465857 27^2^1 + 26^2^1 = 5 * 281 27^2^2 + 26^2^2 = 988417 27^2^3 + 26^2^3 = 17 * 2129 * 13573249 27^2^4 + 26^2^4 = 5857 * 21064569912293219041 27^2^5 + 26^2^5 = 38586205045121 * 425210323827137 * 503704552377552961 28^2^1 + 27^2^1 = 17 * 89 28^2^2 + 27^2^2 = 1146097 28^2^3 + 27^2^3 = 241 * 2739549937 28^2^4 + 27^2^4 = 97 * 265249 * 15493601 * 558153569 28^2^5 + 27^2^5 = 682531009 * 2730227777 * 45837612929 * 313003792384869121 29^2^1 + 28^2^1 = 5 * 5 * 5 * 13 29^2^2 + 28^2^2 = 17 * 77761 29^2^3 + 28^2^3 = 60161 * 14594977 29^2^4 + 28^2^4 = 19937 * 19711131244772147041 29^2^5 + 28^2^5 = 1430645947637953 * 58013229884849302058399963013569 30^2^1 + 29^2^1 = 1741 30^2^2 + 29^2^2 = 977 * 1553 30^2^3 + 29^2^3 = 17 * 113 * 601950241 30^2^4 + 29^2^4 = 4673 * 289889 * 502501038597793 30^2^5 + 29^2^5 = 51137 * 84673 * 57258594428966842629416980351905034241 31^2^1 + 30^2^1 = 1861 31^2^2 + 30^2^2 = 41 * 42281 31^2^3 + 30^2^3 = 17 * 127649 * 695377 31^2^4 + 30^2^4 = 290113 * 11191937 * 356611201601 31^2^5 + 30^2^5 = 13123009 * 54442271352370817905933763658993052388929 32^2^1 + 31^2^1 = 5 * 397 32^2^2 + 31^2^2 = 1972097 32^2^3 + 31^2^3 = 17 * 23473 * 4892737 32^2^4 + 31^2^4 = 1936348941361814438534657 32^2^5 + 31^2^5 = 769 * 3137 * 825188533926553548722187327732351681985729 33^2^1 + 32^2^1 = 2113 33^2^2 + 32^2^2 = 17 * 131441 33^2^3 + 32^2^3 = 2505920246017 33^2^4 + 32^2^4 = 353 * 1621729 * 5566945246068161 33^2^5 + 32^2^5 = 2983873 * 2699484696449 * 667160869177034668544161881281 34^2^1 + 33^2^1 = 5 * 449 34^2^2 + 33^2^2 = 2522257 34^2^3 + 33^2^3 = 3192202523137 34^2^4 + 33^2^4 = 97 * 101704961 * 523755236475041 34^2^5 + 33^2^5 = 138885889 * 101396393959938517627828587538992791914753 35^2^1 + 34^2^1 = 2381 35^2^2 + 34^2^2 = 2836961 35^2^3 + 34^2^3 = 63793 * 63293297 35^2^4 + 34^2^4 = 8260002645666200230661441 35^2^5 + 34^2^5 = 257 * 766721 * 182111422140701790077181229202218527225473 36^2^1 + 35^2^1 = 2521 36^2^2 + 35^2^2 = 17 * 187073 36^2^3 + 35^2^3 = 5072985298081 36^2^4 + 35^2^4 = 1017889 * 1067489 * 11991330783041 36^2^5 + 35^2^5 = 1601 * 25601 * 2172745274538485986133882161870613603987521 37^2^1 + 36^2^1 = 5 * 13 * 41 37^2^2 + 36^2^2 = 3553777 37^2^3 + 36^2^3 = 17 * 372564080081 37^2^4 + 36^2^4 = 97 * 2689 * 77812903367915743969 37^2^5 + 36^2^5 = 193 * 246596929 * 4529101927325059936608676611108659015041 38^2^1 + 37^2^1 = 29 * 97 38^2^2 + 37^2^2 = 3959297 38^2^3 + 37^2^3 = 17 * 2017 * 3169 * 72337 38^2^4 + 37^2^4 = 193 * 14401 * 64513 * 174230854190273 38^2^5 + 37^2^5 = 85882052629656956129921 * 5933123422482402978732708097 39^2^1 + 38^2^1 = 5 * 593 39^2^2 + 38^2^2 = 4398577 39^2^3 + 38^2^3 = 17 * 570576552881 39^2^4 + 38^2^4 = 77287393 * 160734913 * 3827427553 39^2^5 + 38^2^5 = 449 * 7489 * 13697 * 25572954892612276774237676295966776791681 40^2^1 + 39^2^1 = 3121 40^2^2 + 39^2^2 = 17 * 286673 40^2^3 + 39^2^3 = 11905609260481 40^2^4 + 39^2^4 = 449 * 2207969 * 72216319340102881 40^2^5 + 39^2^5 = 257 * 9473 * 33857 * 59906162177 * 539736223956774484874617683649 41^2^1 + 40^2^1 = 17 * 193 41^2^2 + 40^2^2 = 5385761 41^2^3 + 40^2^3 = 97 * 433 * 449 * 770929 41^2^4 + 40^2^4 = 3617 * 29501991671178616075873 41^2^5 + 40^2^5 = 257 * 155137 * 909889 * 1701121 * 9373692353 * 10216366246455531079937 42^2^1 + 41^2^1 = 5 * 13 * 53 42^2^2 + 41^2^2 = 89 * 66713 42^2^3 + 41^2^3 = 17 * 1039269248561 42^2^4 + 41^2^4 = 157512780598351804823277697 42^2^5 + 41^2^5 = 581502209 * 22106501753511528715457335286036459409267713 43^2^1 + 42^2^1 = 3613 43^2^2 + 42^2^2 = 2393 * 2729 43^2^3 + 42^2^3 = 21370852274017 43^2^4 + 42^2^4 = 193 * 764470887841 * 1561361505889 43^2^5 + 42^2^5 = 2113 * 341569 * 436088122241 * 3497012121052993 * 24942671238193217 44^2^1 + 43^2^1 = 5 * 757 44^2^2 + 43^2^2 = 7166897 44^2^3 + 43^2^3 = 17 * 97 * 4481 * 3482993 44^2^4 + 43^2^4 = 108769 * 3070420917296187945953 44^2^5 + 43^2^5 = 449 * 128310547062505615989210631900978873491478539698113 45^2^1 + 44^2^1 = 17 * 233 45^2^2 + 44^2^2 = 1289 * 6089 45^2^3 + 44^2^3 = 9521 * 3241607921 45^2^4 + 44^2^4 = 353 * 1360059572029797541271777 45^2^5 + 44^2^5 = 2654593 * 576603357377 * 28734547696559489 * 2703230691730339009 46^2^1 + 45^2^1 = 41 * 101 46^2^2 + 45^2^2 = 17 * 504593 46^2^3 + 45^2^3 = 97 * 241 * 241 * 6543073 46^2^4 + 45^2^4 = 684655198104511486296198721 46^2^5 + 45^2^5 = 193 * 1601 * 390721 * 1085922049 * 1841871921771737150551330913522753 47^2^1 + 46^2^1 = 5 * 5 * 173 47^2^2 + 46^2^2 = 2713 * 3449 47^2^3 + 46^2^3 = 17 * 657473 * 3924017 47^2^4 + 46^2^4 = 97 * 4348577 * 2296957412061076993 47^2^5 + 46^2^5 = 6529 * 19457 * 3802049204558207269288925860193818994829706369 48^2^1 + 47^2^1 = 4513 48^2^2 + 47^2^2 = 89 * 114473 48^2^3 + 47^2^3 = 17 * 3058268652401 48^2^4 + 47^2^4 = 12770386817 * 106578542803112321 48^2^5 + 47^2^5 = 257 * 921428835119159382593 * 4020204596868823291588949190337 49^2^1 + 48^2^1 = 5 * 941 49^2^2 + 48^2^2 = 11073217 49^2^3 + 48^2^3 = 17 * 193 * 593 * 31564129 49^2^4 + 48^2^4 = 5153 * 573073889 * 642894526152961 49^2^5 + 48^2^5 = 24730753 * 14343330604887617 * 5216236626222564388830006565697 50^2^1 + 49^2^1 = 13 * 13 * 29 50^2^2 + 49^2^2 = 17 * 706753 50^2^3 + 49^2^3 = 330689 * 218620609 50^2^4 + 49^2^4 = 12042113 * 218425668360189000577 50^2^5 + 49^2^5 = 257 * 10280321 * 62127485625857 * 21615646359005877837007648272769 51^2^1 + 50^2^1 = 5101 51^2^2 + 50^2^2 = 1609 * 8089 51^2^3 + 50^2^3 = 593 * 143053026257 51^2^4 + 50^2^4 = 97 * 449 * 3169 * 26232414872124140993 51^2^5 + 50^2^5 = 769 * 1496414281729 * 5836313462548938889559129912622145392001