Q: Is 423,340 a Prime Number?
A: No, 423,340 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 423340 can be evenly divided by 1 2 4 5 10 20 61 122 244 305 347 610 694 1,220 1,388 1,735 3,470 6,940 21,167 42,334 84,668 105,835 211,670 and 423,340, with no remainder.
Since 423,340 cannot be divided by just 1 and 423,340, it is not a prime number.