Q: Is 21,176,280 a Composite Number?

Why is 21,176,280 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 21,176,280 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 59 60 72 90 118 120 177 180 236 295 354 360 472 531 590 708 885 997 1,062 1,180 1,416 1,770 1,994 2,124 2,360 2,655 2,991 3,540 3,988 4,248 4,985 5,310 5,982 7,080 7,976 8,973 9,970 10,620 11,964 14,955 17,946 19,940 21,240 23,928 29,910 35,892 39,880 44,865 58,823 59,820 71,784 89,730 117,646 119,640 176,469 179,460 235,292 294,115 352,938 358,920 470,584 529,407 588,230 705,876 882,345 1,058,814 1,176,460 1,411,752 1,764,690 2,117,628 2,352,920 2,647,035 3,529,380 4,235,256 5,294,070 7,058,760 10,588,140 and 21,176,280, with no remainder.

Since 21,176,280 cannot be divided by just 1 and 21,176,280, 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).