Q: Is 1,221,498 a Prime Number?
A: No, 1,221,498 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 1221498 can be evenly divided by 1 2 3 6 9 18 79 158 237 474 711 859 1,422 1,718 2,577 5,154 7,731 15,462 67,861 135,722 203,583 407,166 610,749 and 1,221,498, with no remainder.
Since 1,221,498 cannot be divided by just 1 and 1,221,498, it is not a prime number.