Q: Is 42,005 a Prime Number?
A: No, 42,005 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 42005 can be evenly divided by 1 5 31 155 271 1,355 8,401 and 42,005, with no remainder.
Since 42,005 cannot be divided by just 1 and 42,005, it is not a prime number.