Q: Is 280,720 a Prime Number?
A: No, 280,720 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 280720 can be evenly divided by 1 2 4 5 8 10 11 16 20 22 29 40 44 55 58 80 88 110 116 121 145 176 220 232 242 290 319 440 464 484 580 605 638 880 968 1,160 1,210 1,276 1,595 1,936 2,320 2,420 2,552 3,190 3,509 4,840 5,104 6,380 7,018 9,680 12,760 14,036 17,545 25,520 28,072 35,090 56,144 70,180 140,360 and 280,720, with no remainder.
Since 280,720 cannot be divided by just 1 and 280,720, it is not a prime number.