we need to calculate 3^256 and we know
3^4 =1 mod(10) so we have to multiply such no. a with 4 such that we get closer to 256 so that 3^4a=1 mod (10)
so we can observe we need 4a...

we need to calculate 3^256 and we know
3^4 =1 mod(10) so we have to multiply such no. a with 4 such that we get closer to 256 so that 3^4a=1 mod (10)
so we can observe we need 4a...

we need to calculate 3^256 and we know
3^4 =1 mod(10) so we have to multiply such no. a with 4 such that we get closer to 256 so that 3^4a=1 mod (10)
so we can observe we need 4a...

we need to calculate 3^256 and we know
3^4 =1 mod(10) so we have to multiply such no. a with 4 such that we get closer to 256 so that 3^4a=1 mod (10)
so we can observe we need 4a...