Q: Is 16,640 a Prime Number?
A: No, 16,640 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 16640 can be evenly divided by 1 2 4 5 8 10 13 16 20 26 32 40 52 64 65 80 104 128 130 160 208 256 260 320 416 520 640 832 1,040 1,280 1,664 2,080 3,328 4,160 8,320 and 16,640, with no remainder.
Since 16,640 cannot be divided by just 1 and 16,640, it is not a prime number.