Q: Is 1,648,626 a Prime Number?
A: No, 1,648,626 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 1648626 can be evenly divided by 1 2 3 6 7 14 17 21 34 42 51 102 119 238 357 714 2,309 4,618 6,927 13,854 16,163 32,326 39,253 48,489 78,506 96,978 117,759 235,518 274,771 549,542 824,313 and 1,648,626, with no remainder.
Since 1,648,626 cannot be divided by just 1 and 1,648,626, it is not a prime number.