6,8,10
3 4 5
5 12 13
7 24 25
9 40 41
11 60 61
13 84 85
15 112 113
8,15,17
12,35,37
20,21,29
20,99,101
48,55,73
60,91,109
常见的勾股数及几种通式有:
(1) (3,4,5),(6,8,10) … …
3n,4n,5n (n是正整数)
(2) (5,12,13) ,( 7,24,25),( 9,40,41) … …
2n + 1,2n^2 + 2n,2n^2 + 2n + 1 (n是正整数)
(3) (8,15,17),(12,35,37) … …
2^2*(n+1),[2(n+1)]^2-1,[2(n+1)]^2+1 (n是正整数)
(4)m^2-n^2,2mn,m^2+n^2 (m、n均是正整数,m>n)