Q: Is 218,491 a Prime Number?
A: No, 218,491 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 218491 can be evenly divided by 1 7 13 49 91 343 637 2,401 4,459 16,807 31,213 and 218,491, with no remainder.
Since 218,491 cannot be divided by just 1 and 218,491, it is not a prime number.