Q: Is 1,221,071 a Prime Number?
A: No, 1,221,071 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 1221071 can be evenly divided by 1 43 73 389 3,139 16,727 28,397 and 1,221,071, with no remainder.
Since 1,221,071 cannot be divided by just 1 and 1,221,071, it is not a prime number.