Q: Is 420,724 a Prime Number?
A: No, 420,724 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 420724 can be evenly divided by 1 2 4 107 214 428 983 1,966 3,932 105,181 210,362 and 420,724, with no remainder.
Since 420,724 cannot be divided by just 1 and 420,724, it is not a prime number.