Q: Is 637,408 a Prime Number?
A: No, 637,408 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 637408 can be evenly divided by 1 2 4 8 16 32 19,919 39,838 79,676 159,352 318,704 and 637,408, with no remainder.
Since 637,408 cannot be divided by just 1 and 637,408, it is not a prime number.