Q: Is 408,340 a Prime Number?
A: No, 408,340 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 408340 can be evenly divided by 1 2 4 5 10 17 20 34 68 85 170 340 1,201 2,402 4,804 6,005 12,010 20,417 24,020 40,834 81,668 102,085 204,170 and 408,340, with no remainder.
Since 408,340 cannot be divided by just 1 and 408,340, it is not a prime number.