Q: Is 12,438,560 a Composite Number?

Why is 12,438,560 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 12,438,560 can be evenly divided by 1 2 4 5 8 10 16 17 20 32 34 40 68 80 85 136 160 170 269 272 289 340 538 544 578 680 1,076 1,156 1,345 1,360 1,445 2,152 2,312 2,690 2,720 2,890 4,304 4,573 4,624 5,380 5,780 8,608 9,146 9,248 10,760 11,560 18,292 21,520 22,865 23,120 36,584 43,040 45,730 46,240 73,168 77,741 91,460 146,336 155,482 182,920 310,964 365,840 388,705 621,928 731,680 777,410 1,243,856 1,554,820 2,487,712 3,109,640 6,219,280 and 12,438,560, with no remainder.

Since 12,438,560 cannot be divided by just 1 and 12,438,560, 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).