Q: Is 21,123,133 a Prime Number?
A: Yes, 21,123,133 is a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 21123133 can be evenly divided by 1 and 21,123,133, with no remainder.
Since 21,123,133 can be divided by just 1 and 21,123,133, it is a prime number.
| Number | 21,123,131 | 21,123,132 | 21,123,134 | 21,123,135 |
| Prime? | no | no | no | no |