Q: Is 218,507 a Prime Number?
A: No, 218,507 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 218507 can be evenly divided by 1 353 619 and 218,507, with no remainder.
Since 218,507 cannot be divided by just 1 and 218,507, it is not a prime number.