Q: Is 1,721,124 a Prime Number?
A: No, 1,721,124 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 1721124 can be evenly divided by 1 2 3 4 6 9 12 18 36 47,809 95,618 143,427 191,236 286,854 430,281 573,708 860,562 and 1,721,124, with no remainder.
Since 1,721,124 cannot be divided by just 1 and 1,721,124, it is not a prime number.