Q: Is 15,155,568 a Composite Number?

Why is 15,155,568 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 15,155,568 can be evenly divided by 1 2 3 4 6 8 9 12 16 17 18 24 34 36 41 48 51 68 72 82 102 123 136 144 151 153 164 204 246 272 302 306 328 369 408 453 492 604 612 656 697 738 816 906 984 1,208 1,224 1,359 1,394 1,476 1,812 1,968 2,091 2,416 2,448 2,567 2,718 2,788 2,952 3,624 4,182 5,134 5,436 5,576 5,904 6,191 6,273 7,248 7,701 8,364 10,268 10,872 11,152 12,382 12,546 15,402 16,728 18,573 20,536 21,744 23,103 24,764 25,092 30,804 33,456 37,146 41,072 46,206 49,528 50,184 55,719 61,608 74,292 92,412 99,056 100,368 105,247 111,438 123,216 148,584 184,824 210,494 222,876 297,168 315,741 369,648 420,988 445,752 631,482 841,976 891,504 947,223 1,262,964 1,683,952 1,894,446 2,525,928 3,788,892 5,051,856 7,577,784 and 15,155,568, with no remainder.

Since 15,155,568 cannot be divided by just 1 and 15,155,568, 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).