Q: Is 21,003,424 a Prime Number?
A: No, 21,003,424 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 21003424 can be evenly divided by 1 2 4 8 13 16 26 29 32 52 58 104 116 208 232 377 416 464 754 928 1,508 1,741 3,016 3,482 6,032 6,964 12,064 13,928 22,633 27,856 45,266 50,489 55,712 90,532 100,978 181,064 201,956 362,128 403,912 656,357 724,256 807,824 1,312,714 1,615,648 2,625,428 5,250,856 10,501,712 and 21,003,424, with no remainder.
Since 21,003,424 cannot be divided by just 1 and 21,003,424, it is not a prime number.
| Number | 21,003,422 | 21,003,423 | 21,003,425 | 21,003,426 |
| Prime? | no | no | no | no |