Q: Is 21,421,004 a Prime Number?
A: No, 21,421,004 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 21421004 can be evenly divided by 1 2 4 11 22 23 44 46 61 92 122 244 253 347 506 671 694 1,012 1,342 1,388 1,403 2,684 2,806 3,817 5,612 7,634 7,981 15,268 15,433 15,962 21,167 30,866 31,924 42,334 61,732 84,668 87,791 175,582 232,837 351,164 465,674 486,841 931,348 973,682 1,947,364 5,355,251 10,710,502 and 21,421,004, with no remainder.
Since 21,421,004 cannot be divided by just 1 and 21,421,004, it is not a prime number.
| Number | 21,421,002 | 21,421,003 | 21,421,005 | 21,421,006 |
| Prime? | no | no | no | no |