Q: Is 542,428 a Prime Number?
A: No, 542,428 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 542428 can be evenly divided by 1 2 4 135,607 271,214 and 542,428, with no remainder.
Since 542,428 cannot be divided by just 1 and 542,428, it is not a prime number.