Q: Is 422,628 a Prime Number?
A: No, 422,628 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 422628 can be evenly divided by 1 2 3 4 6 12 41 82 123 164 246 492 859 1,718 2,577 3,436 5,154 10,308 35,219 70,438 105,657 140,876 211,314 and 422,628, with no remainder.
Since 422,628 cannot be divided by just 1 and 422,628, it is not a prime number.