- #1
lil_luc
- 5
- 0
Can anyone give me hints to how to prove this??
Prove that for any positive integer n, n^5 and n have the same units digit in their base 10
representations; that is, prove that n^5 = n (mod 10).
Thanks!
Prove that for any positive integer n, n^5 and n have the same units digit in their base 10
representations; that is, prove that n^5 = n (mod 10).
Thanks!