Q: Is 878,631 a Prime Number?
A: No, 878,631 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 878631 can be evenly divided by 1 3 13 39 169 507 1,733 5,199 22,529 67,587 292,877 and 878,631, with no remainder.
Since 878,631 cannot be divided by just 1 and 878,631, it is not a prime number.