Question

3to the power2187 divided by 7 what's the remainder left?​

Answer 1

We have:

3^1 remainder 7: 3

3^2 remainder 7: 2

3^3 remainder 7: 6

3^4: 4

3^5: 5

3^6: 1

3^7: 3

And it repeats every 6. So, we have:

2187 remainder 6 = 3

3^3 remainder 7: 6.