Q: Is 1,231,516 a Prime Number?
A: No, 1,231,516 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 1231516 can be evenly divided by 1 2 4 11 13 22 26 44 52 143 286 572 2,153 4,306 8,612 23,683 27,989 47,366 55,978 94,732 111,956 307,879 615,758 and 1,231,516, with no remainder.
Since 1,231,516 cannot be divided by just 1 and 1,231,516, it is not a prime number.