Q: Is 637,216 a Prime Number?
A: No, 637,216 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 637216 can be evenly divided by 1 2 4 8 16 32 19,913 39,826 79,652 159,304 318,608 and 637,216, with no remainder.
Since 637,216 cannot be divided by just 1 and 637,216, it is not a prime number.