Q: Is 1,643,008 a Prime Number?
A: No, 1,643,008 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 1643008 can be evenly divided by 1 2 4 8 16 32 64 128 256 512 3,209 6,418 12,836 25,672 51,344 102,688 205,376 410,752 821,504 and 1,643,008, with no remainder.
Since 1,643,008 cannot be divided by just 1 and 1,643,008, it is not a prime number.