Q: Is 21,423,042 a Prime Number?
A: No, 21,423,042 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 21423042 can be evenly divided by 1 2 3 6 9 18 27 54 81 162 132,241 264,482 396,723 793,446 1,190,169 2,380,338 3,570,507 7,141,014 10,711,521 and 21,423,042, with no remainder.
Since 21,423,042 cannot be divided by just 1 and 21,423,042, it is not a prime number.
| Number | 21,423,040 | 21,423,041 | 21,423,043 | 21,423,044 |
| Prime? | no | no | no | no |