Q: Is 457,720 a Prime Number?
A: No, 457,720 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 457720 can be evenly divided by 1 2 4 5 8 10 20 40 11,443 22,886 45,772 57,215 91,544 114,430 228,860 and 457,720, with no remainder.
Since 457,720 cannot be divided by just 1 and 457,720, it is not a prime number.