Q: Is 542,138 a Prime Number?
A: No, 542,138 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 542138 can be evenly divided by 1 2 163 326 1,663 3,326 271,069 and 542,138, with no remainder.
Since 542,138 cannot be divided by just 1 and 542,138, it is not a prime number.