Q: Is 321,668 a Prime Number?
A: No, 321,668 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 321668 can be evenly divided by 1 2 4 29 47 58 59 94 116 118 188 236 1,363 1,711 2,726 2,773 3,422 5,452 5,546 6,844 11,092 80,417 160,834 and 321,668, with no remainder.
Since 321,668 cannot be divided by just 1 and 321,668, it is not a prime number.