Q: Is 637,520 a Prime Number?
A: No, 637,520 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 637520 can be evenly divided by 1 2 4 5 8 10 13 16 20 26 40 52 65 80 104 130 208 260 520 613 1,040 1,226 2,452 3,065 4,904 6,130 7,969 9,808 12,260 15,938 24,520 31,876 39,845 49,040 63,752 79,690 127,504 159,380 318,760 and 637,520, with no remainder.
Since 637,520 cannot be divided by just 1 and 637,520, it is not a prime number.