Q: Is 1,221,104 a Prime Number?
A: No, 1,221,104 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 1221104 can be evenly divided by 1 2 4 8 16 167 334 457 668 914 1,336 1,828 2,672 3,656 7,312 76,319 152,638 305,276 610,552 and 1,221,104, with no remainder.
Since 1,221,104 cannot be divided by just 1 and 1,221,104, it is not a prime number.