Question

888888..........100 times..........8888 - this 100 digit no. is divided by 625 then what is the remainder?

Answer 1

The divisibility for 625=5^4 :
The remainder obtained when remainder on division of a number by 625 is same as remainder  obtained when last 4 digits of the number are divided by  625.

so 8888...100 times..88  leaves same remainder as 8888 divided by 625 is 138.

So remainder =138