Q: Is 542,609 a Prime Number?
A: No, 542,609 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 542609 can be evenly divided by 1 73 7,433 and 542,609, with no remainder.
Since 542,609 cannot be divided by just 1 and 542,609, it is not a prime number.