Q: Is 21,167,421 a Prime Number?
A: No, 21,167,421 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 21167421 can be evenly divided by 1 3 11 33 641,437 1,924,311 7,055,807 and 21,167,421, with no remainder.
Since 21,167,421 cannot be divided by just 1 and 21,167,421, it is not a prime number.
Number | 21,167,419 | 21,167,420 | 21,167,422 | 21,167,423 |
Prime? | no | no | no | yes |