Q: Is 268,420 a Prime Number?
A: No, 268,420 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 268420 can be evenly divided by 1 2 4 5 10 20 13,421 26,842 53,684 67,105 134,210 and 268,420, with no remainder.
Since 268,420 cannot be divided by just 1 and 268,420, it is not a prime number.