Q: Is 506,420 a Prime Number?
A: No, 506,420 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 506420 can be evenly divided by 1 2 4 5 10 20 25,321 50,642 101,284 126,605 253,210 and 506,420, with no remainder.
Since 506,420 cannot be divided by just 1 and 506,420, it is not a prime number.