Q: Is 20,771,640 a Composite Number?

Why is 20,771,640 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 20,771,640 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 72 81 90 108 120 135 162 180 216 243 270 324 360 405 486 540 648 810 972 1,080 1,215 1,620 1,944 2,137 2,430 3,240 4,274 4,860 6,411 8,548 9,720 10,685 12,822 17,096 19,233 21,370 25,644 32,055 38,466 42,740 51,288 57,699 64,110 76,932 85,480 96,165 115,398 128,220 153,864 173,097 192,330 230,796 256,440 288,495 346,194 384,660 461,592 519,291 576,990 692,388 769,320 865,485 1,038,582 1,153,980 1,384,776 1,730,970 2,077,164 2,307,960 2,596,455 3,461,940 4,154,328 5,192,910 6,923,880 10,385,820 and 20,771,640, with no remainder.

Since 20,771,640 cannot be divided by just 1 and 20,771,640, 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).