Q: Is 542,345 a Prime Number?
A: No, 542,345 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 542345 can be evenly divided by 1 5 31 155 3,499 17,495 108,469 and 542,345, with no remainder.
Since 542,345 cannot be divided by just 1 and 542,345, it is not a prime number.