Q: Is 21,008,043 a Prime Number?
A: No, 21,008,043 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 21008043 can be evenly divided by 1 3 7 9 21 63 139 417 973 1,251 2,399 2,919 7,197 8,757 16,793 21,591 50,379 151,137 333,461 1,000,383 2,334,227 3,001,149 7,002,681 and 21,008,043, with no remainder.
Since 21,008,043 cannot be divided by just 1 and 21,008,043, it is not a prime number.
| Number | 21,008,041 | 21,008,042 | 21,008,044 | 21,008,045 |
| Prime? | yes | no | no | no |