Q: Is 542,009 a Prime Number?
A: No, 542,009 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 542009 can be evenly divided by 1 13 173 241 2,249 3,133 41,693 and 542,009, with no remainder.
Since 542,009 cannot be divided by just 1 and 542,009, it is not a prime number.