Q: Is 1,200,111 a Prime Number?
A: No, 1,200,111 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 1200111 can be evenly divided by 1 3 11 33 41 123 451 887 1,353 2,661 9,757 29,271 36,367 109,101 400,037 and 1,200,111, with no remainder.
Since 1,200,111 cannot be divided by just 1 and 1,200,111, it is not a prime number.