Q: Is 6,428,624 a Prime Number?
A: No, 6,428,624 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 6428624 can be evenly divided by 1 2 4 8 16 71 142 284 568 1,136 5,659 11,318 22,636 45,272 90,544 401,789 803,578 1,607,156 3,214,312 and 6,428,624, with no remainder.
Since 6,428,624 cannot be divided by just 1 and 6,428,624, it is not a prime number.