Q: Is 542,121 a Prime Number?
A: No, 542,121 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 542121 can be evenly divided by 1 3 157 471 1,151 3,453 180,707 and 542,121, with no remainder.
Since 542,121 cannot be divided by just 1 and 542,121, it is not a prime number.