For any prime . Prove that

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- Mar 20th 2013, 07:49 PMKanwar245Prime number
For any prime . Prove that

- Mar 20th 2013, 08:24 PMrgrotheeRe: Prime number
0

- Mar 21st 2013, 06:11 AMHallsofIvyRe: Prime number
- Mar 21st 2013, 03:57 PMKanwar245Re: Prime number
- Mar 21st 2013, 04:59 PMHallsofIvyRe: Prime number
! Oh, Dear. Well,

Obviously, if p is prime, larger than or equal to 29, then both p+1, and p- 1 are even so it remains to show that one of the factors is divisible 7 and one by 13. - Mar 21st 2013, 09:27 PMNehushtanRe: Prime number