Q: Is 520,624 a Prime Number?
A: No, 520,624 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 520624 can be evenly divided by 1 2 4 8 13 16 26 52 104 208 2,503 5,006 10,012 20,024 32,539 40,048 65,078 130,156 260,312 and 520,624, with no remainder.
Since 520,624 cannot be divided by just 1 and 520,624, it is not a prime number.