Q: Is 121,121,112 a Composite Number?

Why is 121,121,112 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 121,121,112 can be evenly divided by 1 2 3 4 6 7 8 12 14 21 24 28 42 53 56 61 84 106 122 159 168 183 212 223 244 318 366 371 424 427 446 488 636 669 732 742 854 892 1,113 1,272 1,281 1,338 1,464 1,484 1,561 1,708 1,784 2,226 2,562 2,676 2,968 3,122 3,233 3,416 4,452 4,683 5,124 5,352 6,244 6,466 8,904 9,366 9,699 10,248 11,819 12,488 12,932 13,603 18,732 19,398 22,631 23,638 25,864 27,206 35,457 37,464 38,796 40,809 45,262 47,276 54,412 67,893 70,914 77,592 81,618 82,733 90,524 94,552 95,221 108,824 135,786 141,828 163,236 165,466 181,048 190,442 248,199 271,572 283,656 285,663 326,472 330,932 380,884 496,398 543,144 571,326 661,864 720,959 761,768 992,796 1,142,652 1,441,918 1,985,592 2,162,877 2,285,304 2,883,836 4,325,754 5,046,713 5,767,672 8,651,508 10,093,426 15,140,139 17,303,016 20,186,852 30,280,278 40,373,704 60,560,556 and 121,121,112, with no remainder.

Since 121,121,112 cannot be divided by just 1 and 121,121,112, 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).