Q: Is 72,800 a Prime Number?
A: No, 72,800 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 72800 can be evenly divided by 1 2 4 5 7 8 10 13 14 16 20 25 26 28 32 35 40 50 52 56 65 70 80 91 100 104 112 130 140 160 175 182 200 208 224 260 280 325 350 364 400 416 455 520 560 650 700 728 800 910 1,040 1,120 1,300 1,400 1,456 1,820 2,080 2,275 2,600 2,800 2,912 3,640 4,550 5,200 5,600 7,280 9,100 10,400 14,560 18,200 36,400 and 72,800, with no remainder.
Since 72,800 cannot be divided by just 1 and 72,800, it is not a prime number.