Q: Is 12,531,040 a Composite Number?

Why is 12,531,040 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 12,531,040 can be evenly divided by 1 2 4 5 8 10 16 17 20 32 34 40 68 80 85 136 160 170 271 272 289 340 542 544 578 680 1,084 1,156 1,355 1,360 1,445 2,168 2,312 2,710 2,720 2,890 4,336 4,607 4,624 5,420 5,780 8,672 9,214 9,248 10,840 11,560 18,428 21,680 23,035 23,120 36,856 43,360 46,070 46,240 73,712 78,319 92,140 147,424 156,638 184,280 313,276 368,560 391,595 626,552 737,120 783,190 1,253,104 1,566,380 2,506,208 3,132,760 6,265,520 and 12,531,040, with no remainder.

Since 12,531,040 cannot be divided by just 1 and 12,531,040, 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).