Q: Is 13,385,040 a Composite Number?

Why is 13,385,040 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 13,385,040 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 43 48 60 80 86 120 129 172 215 240 258 344 430 516 645 688 860 1,032 1,290 1,297 1,720 2,064 2,580 2,594 3,440 3,891 5,160 5,188 6,485 7,782 10,320 10,376 12,970 15,564 19,455 20,752 25,940 31,128 38,910 51,880 55,771 62,256 77,820 103,760 111,542 155,640 167,313 223,084 278,855 311,280 334,626 446,168 557,710 669,252 836,565 892,336 1,115,420 1,338,504 1,673,130 2,230,840 2,677,008 3,346,260 4,461,680 6,692,520 and 13,385,040, with no remainder.

Since 13,385,040 cannot be divided by just 1 and 13,385,040, 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).