20230317, 10:40  #1 
"Chereztynnoguzakidai"
Oct 2022
Ukraine, near Kyiv.
54_{10} Posts 
a^n = a (mod b) for any n> 0
for example, for any n>0
Explain. Find relations for a and b) 
20230317, 13:04  #2 
Feb 2017
Nowhere
1100010111011_{2} Posts 

20230322, 11:30  #3 
"Bo Chen"
Oct 2005
Wuhan,China
2^{3}×23 Posts 
ba*(a1)
