Q: Is 138,021 a Prime Number?
A: No, 138,021 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 138021 can be evenly divided by 1 3 13 39 3,539 10,617 46,007 and 138,021, with no remainder.
Since 138,021 cannot be divided by just 1 and 138,021, it is not a prime number.