Q: Is 542,357 a Prime Number?
A: No, 542,357 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 542357 can be evenly divided by 1 659 823 and 542,357, with no remainder.
Since 542,357 cannot be divided by just 1 and 542,357, it is not a prime number.