Q: Is 22,018,640 a Composite Number?

Why is 22,018,640 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 22,018,640 can be evenly divided by 1 2 4 5 7 8 10 14 16 20 28 35 40 41 49 56 70 80 82 98 112 137 140 164 196 205 245 274 280 287 328 392 410 490 548 560 574 656 685 784 820 959 980 1,096 1,148 1,370 1,435 1,640 1,918 1,960 2,009 2,192 2,296 2,740 2,870 3,280 3,836 3,920 4,018 4,592 4,795 5,480 5,617 5,740 6,713 7,672 8,036 9,590 10,045 10,960 11,234 11,480 13,426 15,344 16,072 19,180 20,090 22,468 22,960 26,852 28,085 32,144 33,565 38,360 39,319 40,180 44,936 53,704 56,170 67,130 76,720 78,638 80,360 89,872 107,408 112,340 134,260 157,276 160,720 196,595 224,680 268,520 275,233 314,552 393,190 449,360 537,040 550,466 629,104 786,380 1,100,932 1,376,165 1,572,760 2,201,864 2,752,330 3,145,520 4,403,728 5,504,660 11,009,320 and 22,018,640, with no remainder.

Since 22,018,640 cannot be divided by just 1 and 22,018,640, 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).