Q: Is 627,638 a Prime Number?
A: No, 627,638 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 627638 can be evenly divided by 1 2 11 22 47 94 517 607 1,034 1,214 6,677 13,354 28,529 57,058 313,819 and 627,638, with no remainder.
Since 627,638 cannot be divided by just 1 and 627,638, it is not a prime number.