Q: Is 518,720 a Prime Number?
A: No, 518,720 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 518720 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 64 80 160 320 1,621 3,242 6,484 8,105 12,968 16,210 25,936 32,420 51,872 64,840 103,744 129,680 259,360 and 518,720, with no remainder.
Since 518,720 cannot be divided by just 1 and 518,720, it is not a prime number.