Q: Is 72,121 a Prime Number?
A: No, 72,121 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 72121 can be evenly divided by 1 7 10,303 and 72,121, with no remainder.
Since 72,121 cannot be divided by just 1 and 72,121, it is not a prime number.