Q: Is 542,408 a Prime Number?
A: No, 542,408 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 542408 can be evenly divided by 1 2 4 8 67,801 135,602 271,204 and 542,408, with no remainder.
Since 542,408 cannot be divided by just 1 and 542,408, it is not a prime number.