Q: Is 542,491 a Prime Number?
A: No, 542,491 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 542491 can be evenly divided by 1 241 2,251 and 542,491, with no remainder.
Since 542,491 cannot be divided by just 1 and 542,491, it is not a prime number.