Q: Is 20,400 a Composite Number?
A: Yes, 20,400 is a composite number.
The number 20,400 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 17 20 24 25 30 34 40 48 50 51 60 68 75 80 85 100 102 120 136 150 170 200 204 240 255 272 300 340 400 408 425 510 600 680 816 850 1,020 1,200 1,275 1,360 1,700 2,040 2,550 3,400 4,080 5,100 6,800 10,200 and 20,400, with no remainder.
Since 20,400 cannot be divided by just 1 and 20,400, it is a composite number.