Q: Is 990,421 a Prime Number?
A: No, 990,421 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 990421 can be evenly divided by 1 521 1,901 and 990,421, with no remainder.
Since 990,421 cannot be divided by just 1 and 990,421, it is not a prime number.