Q: Is 43,121 a Prime Number?
A: No, 43,121 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 43121 can be evenly divided by 1 13 31 107 403 1,391 3,317 and 43,121, with no remainder.
Since 43,121 cannot be divided by just 1 and 43,121, it is not a prime number.