Q: Is 231,120,021 a Prime Number?
A: No, 231,120,021 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 231120021 can be evenly divided by 1 3 11 33 2,383 2,939 7,149 8,817 26,213 32,329 78,639 96,987 7,003,637 21,010,911 77,040,007 and 231,120,021, with no remainder.
Since 231,120,021 cannot be divided by just 1 and 231,120,021, it is not a prime number.
| Number | 231,120,019 | 231,120,020 | 231,120,022 | 231,120,023 |
| Prime? | no | no | no | yes |