Q: Is 1,221,228 a Prime Number?
A: No, 1,221,228 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 1221228 can be evenly divided by 1 2 3 4 6 9 12 18 36 33,923 67,846 101,769 135,692 203,538 305,307 407,076 610,614 and 1,221,228, with no remainder.
Since 1,221,228 cannot be divided by just 1 and 1,221,228, it is not a prime number.