Q: Is 1,620,708 a Prime Number?
A: No, 1,620,708 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 1620708 can be evenly divided by 1 2 3 4 6 12 135,059 270,118 405,177 540,236 810,354 and 1,620,708, with no remainder.
Since 1,620,708 cannot be divided by just 1 and 1,620,708, it is not a prime number.