Q: Is 815,040 a Composite Number?

Why is 815,040 a composite number?

A composite number is a number that can be divided evenly by more numbers than 1 and itself. It is the opposite of a prime number.

The number 815,040 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 144 160 180 192 240 283 288 320 360 480 566 576 720 849 960 1,132 1,415 1,440 1,698 2,264 2,547 2,830 2,880 3,396 4,245 4,528 5,094 5,660 6,792 8,490 9,056 10,188 11,320 12,735 13,584 16,980 18,112 20,376 22,640 25,470 27,168 33,960 40,752 45,280 50,940 54,336 67,920 81,504 90,560 101,880 135,840 163,008 203,760 271,680 407,520 and 815,040, with no remainder.

Since 815,040 cannot be divided by just 1 and 815,040, it is a composite number.

More Examples

• All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).