Q: Is 2,121 a Prime Number?
A: No, 2,121 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 2121 can be evenly divided by 1 3 7 21 101 303 707 and 2,121, with no remainder.
Since 2,121 cannot be divided by just 1 and 2,121, it is not a prime number.