Q: Is 71,680 a Prime Number?
A: No, 71,680 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 71680 can be evenly divided by 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 80 112 128 140 160 224 256 280 320 448 512 560 640 896 1,024 1,120 1,280 1,792 2,048 2,240 2,560 3,584 4,480 5,120 7,168 8,960 10,240 14,336 17,920 35,840 and 71,680, with no remainder.
Since 71,680 cannot be divided by just 1 and 71,680, it is not a prime number.