Q: Is 998,621 a Prime Number?
A: No, 998,621 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 998621 can be evenly divided by 1 13 19 169 247 311 3,211 4,043 5,909 52,559 76,817 and 998,621, with no remainder.
Since 998,621 cannot be divided by just 1 and 998,621, it is not a prime number.