Q: Is 42,455 a Prime Number?
A: No, 42,455 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 42455 can be evenly divided by 1 5 7 35 1,213 6,065 8,491 and 42,455, with no remainder.
Since 42,455 cannot be divided by just 1 and 42,455, it is not a prime number.