Q: Is 30,720 a Prime Number?
A: No, 30,720 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 30720 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 256 320 384 480 512 640 768 960 1,024 1,280 1,536 1,920 2,048 2,560 3,072 3,840 5,120 6,144 7,680 10,240 15,360 and 30,720, with no remainder.
Since 30,720 cannot be divided by just 1 and 30,720, it is not a prime number.