Q: Is 121,457 a Prime Number?
A: No, 121,457 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 121457 can be evenly divided by 1 7 17,351 and 121,457, with no remainder.
Since 121,457 cannot be divided by just 1 and 121,457, it is not a prime number.