Q: Is 400,709 a Prime Number?
A: No, 400,709 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 400709 can be evenly divided by 1 61 6,569 and 400,709, with no remainder.
Since 400,709 cannot be divided by just 1 and 400,709, it is not a prime number.