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发表于 2020-2-5 09:17
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若 a^2+b^2= c^2,
且 a+b= 17*23*31*41*47,
由 17*23*31*41*47 有 5个不同的素因子,
则 a^2+b^2= c^2 有 2^(5-1)组 本原勾股数。
1-----( a=613795, b=22743372, c=22751653 )
2-----( a=1654843, b=21702324, c=21765325 )
3-----( a=3215335, b=20141832, c=20396857 )
4-----( a=3662043, b=19695124, c=20032685 )
5-----( a=8479843, b=14877324, c=17124325 )
6-----( a=10166643, b=13190524, c=16653845 )
7-----( a=10618815, b=12738352, c=16583873 )
8-----( a=11394495, b=11962672, c=16520897 )
9-----( a=12167415, b=11189752, c=16530473 )
10-----( a=12533035, b=10824132, c=16560157 )
11-----( a=13766935, b=9590232, c=16777993 )
12-----( a=15471975, b=7885192, c=17365433 )
13-----( a=19448143, b=3909024, c=19837105 )
14-----( a=20395855, b=2961312, c=20609713 )
15-----( a=20963275, b=2393892, c=21099517 )
16-----( a=23174235, b=182932, c=23174957 )
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