Q: Is 345,457 a Prime Number?
A: No, 345,457 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 345457 can be evenly divided by 1 7 17 119 2,903 20,321 49,351 and 345,457, with no remainder.
Since 345,457 cannot be divided by just 1 and 345,457, it is not a prime number.