Q: Is 711,680 a Prime Number?
A: No, 711,680 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 711680 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 64 80 128 139 160 256 278 320 512 556 640 695 1,024 1,112 1,280 1,390 2,224 2,560 2,780 4,448 5,120 5,560 8,896 11,120 17,792 22,240 35,584 44,480 71,168 88,960 142,336 177,920 355,840 and 711,680, with no remainder.
Since 711,680 cannot be divided by just 1 and 711,680, it is not a prime number.