Q: Is 1,558,624 a Prime Number?
A: No, 1,558,624 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 1558624 can be evenly divided by 1 2 4 8 16 32 53 106 212 424 848 919 1,696 1,838 3,676 7,352 14,704 29,408 48,707 97,414 194,828 389,656 779,312 and 1,558,624, with no remainder.
Since 1,558,624 cannot be divided by just 1 and 1,558,624, it is not a prime number.