Q: Is 338,457 a Prime Number?
A: No, 338,457 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 338457 can be evenly divided by 1 3 7 21 71 213 227 497 681 1,491 1,589 4,767 16,117 48,351 112,819 and 338,457, with no remainder.
Since 338,457 cannot be divided by just 1 and 338,457, it is not a prime number.