Q: Is 637,213 a Prime Number?
A: No, 637,213 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 637213 can be evenly divided by 1 643 991 and 637,213, with no remainder.
Since 637,213 cannot be divided by just 1 and 637,213, it is not a prime number.