Q: Is 1,121,628 a Prime Number?
A: No, 1,121,628 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 1121628 can be evenly divided by 1 2 3 4 6 12 151 302 453 604 619 906 1,238 1,812 1,857 2,476 3,714 7,428 93,469 186,938 280,407 373,876 560,814 and 1,121,628, with no remainder.
Since 1,121,628 cannot be divided by just 1 and 1,121,628, it is not a prime number.