Q: Is 42,039 a Prime Number?
A: No, 42,039 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 42039 can be evenly divided by 1 3 9 27 81 173 243 519 1,557 4,671 14,013 and 42,039, with no remainder.
Since 42,039 cannot be divided by just 1 and 42,039, it is not a prime number.