Q: Is 12,720 a Prime Number?
A: No, 12,720 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 12720 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 53 60 80 106 120 159 212 240 265 318 424 530 636 795 848 1,060 1,272 1,590 2,120 2,544 3,180 4,240 6,360 and 12,720, with no remainder.
Since 12,720 cannot be divided by just 1 and 12,720, it is not a prime number.