Q: Is 12,171,520 a Composite Number?

Why is 12,171,520 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 12,171,520 can be evenly divided by 1 2 4 5 8 10 16 20 32 37 40 64 74 80 128 148 160 185 256 257 296 320 370 514 592 640 740 1,028 1,184 1,280 1,285 1,480 2,056 2,368 2,570 2,960 4,112 4,736 5,140 5,920 8,224 9,472 9,509 10,280 11,840 16,448 19,018 20,560 23,680 32,896 38,036 41,120 47,360 47,545 65,792 76,072 82,240 95,090 152,144 164,480 190,180 304,288 328,960 380,360 608,576 760,720 1,217,152 1,521,440 2,434,304 3,042,880 6,085,760 and 12,171,520, with no remainder.

Since 12,171,520 cannot be divided by just 1 and 12,171,520, 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).