Q: Is 400,790 a Prime Number?
A: No, 400,790 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 400790 can be evenly divided by 1 2 5 10 13 26 65 130 3,083 6,166 15,415 30,830 40,079 80,158 200,395 and 400,790, with no remainder.
Since 400,790 cannot be divided by just 1 and 400,790, it is not a prime number.