Q: Is 16,720 a Prime Number?
A: No, 16,720 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 16720 can be evenly divided by 1 2 4 5 8 10 11 16 19 20 22 38 40 44 55 76 80 88 95 110 152 176 190 209 220 304 380 418 440 760 836 880 1,045 1,520 1,672 2,090 3,344 4,180 8,360 and 16,720, with no remainder.
Since 16,720 cannot be divided by just 1 and 16,720, it is not a prime number.