Q: Is 42,121 a Prime Number?
A: No, 42,121 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 42121 can be evenly divided by 1 73 577 and 42,121, with no remainder.
Since 42,121 cannot be divided by just 1 and 42,121, it is not a prime number.