Remember Fermat?
Number Theory
Level
3
If \(x={ 2 }^{ 20 }+{ 3 }^{ 30 }+{ 4 }^{ 40 }+{ 5 }^{ 50 }+{ 6 }^{ 60 }\), find \(x \text{ mod } 7\).
by
Swapnil Das