Q: Is 321,470 a Prime Number?
A: No, 321,470 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 321470 can be evenly divided by 1 2 5 10 17 31 34 61 62 85 122 155 170 305 310 527 610 1,037 1,054 1,891 2,074 2,635 3,782 5,185 5,270 9,455 10,370 18,910 32,147 64,294 160,735 and 321,470, with no remainder.
Since 321,470 cannot be divided by just 1 and 321,470, it is not a prime number.