Q: Is 423,680 a Prime Number?
A: No, 423,680 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 423680 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 331 640 662 1,280 1,324 1,655 2,648 3,310 5,296 6,620 10,592 13,240 21,184 26,480 42,368 52,960 84,736 105,920 211,840 and 423,680, with no remainder.
Since 423,680 cannot be divided by just 1 and 423,680, it is not a prime number.