Q: Is 1,624,398 a Prime Number?
A: No, 1,624,398 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 1624398 can be evenly divided by 1 2 3 6 23 46 69 79 138 149 158 237 298 447 474 894 1,817 3,427 3,634 5,451 6,854 10,281 10,902 11,771 20,562 23,542 35,313 70,626 270,733 541,466 812,199 and 1,624,398, with no remainder.
Since 1,624,398 cannot be divided by just 1 and 1,624,398, it is not a prime number.