Q: Is 420,170 a Prime Number?
A: No, 420,170 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 420170 can be evenly divided by 1 2 5 10 42,017 84,034 210,085 and 420,170, with no remainder.
Since 420,170 cannot be divided by just 1 and 420,170, it is not a prime number.