Q: Is 420,438 a Prime Number?
A: No, 420,438 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 420438 can be evenly divided by 1 2 3 6 79 158 237 474 887 1,774 2,661 5,322 70,073 140,146 210,219 and 420,438, with no remainder.
Since 420,438 cannot be divided by just 1 and 420,438, it is not a prime number.