Q: Is 1,628,624 a Prime Number?
A: No, 1,628,624 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 1628624 can be evenly divided by 1 2 4 8 16 101,789 203,578 407,156 814,312 and 1,628,624, with no remainder.
Since 1,628,624 cannot be divided by just 1 and 1,628,624, it is not a prime number.