Q: Is 311,520 a Composite Number?

Why is 311,520 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 311,520 can be evenly divided by 1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 32 33 40 44 48 55 59 60 66 80 88 96 110 118 120 132 160 165 176 177 220 236 240 264 295 330 352 354 440 472 480 528 590 649 660 708 880 885 944 1,056 1,180 1,298 1,320 1,416 1,760 1,770 1,888 1,947 2,360 2,596 2,640 2,832 3,245 3,540 3,894 4,720 5,192 5,280 5,664 6,490 7,080 7,788 9,440 9,735 10,384 12,980 14,160 15,576 19,470 20,768 25,960 28,320 31,152 38,940 51,920 62,304 77,880 103,840 155,760 and 311,520, with no remainder.

Since 311,520 cannot be divided by just 1 and 311,520, 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).