Q: Is 21,403,004 a Prime Number?
A: No, 21,403,004 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 21403004 can be evenly divided by 1 2 4 7 14 28 49 98 196 109,199 218,398 436,796 764,393 1,528,786 3,057,572 5,350,751 10,701,502 and 21,403,004, with no remainder.
Since 21,403,004 cannot be divided by just 1 and 21,403,004, it is not a prime number.
| Number | 21,403,002 | 21,403,003 | 21,403,005 | 21,403,006 |
| Prime? | no | no | no | no |