Q: Is 336,640 a Prime Number?
A: No, 336,640 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 336640 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 263 320 526 640 1,052 1,280 1,315 2,104 2,630 4,208 5,260 8,416 10,520 16,832 21,040 33,664 42,080 67,328 84,160 168,320 and 336,640, with no remainder.
Since 336,640 cannot be divided by just 1 and 336,640, it is not a prime number.