Q: Is 40,320 a Prime Number?
A: No, 40,320 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 40320 can be evenly divided by 1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 30 32 35 36 40 42 45 48 56 60 63 64 70 72 80 84 90 96 105 112 120 126 128 140 144 160 168 180 192 210 224 240 252 280 288 315 320 336 360 384 420 448 480 504 560 576 630 640 672 720 840 896 960 1,008 1,120 1,152 1,260 1,344 1,440 1,680 1,920 2,016 2,240 2,520 2,688 2,880 3,360 4,032 4,480 5,040 5,760 6,720 8,064 10,080 13,440 20,160 and 40,320, with no remainder.
Since 40,320 cannot be divided by just 1 and 40,320, it is not a prime number.