Q: Is 19,438,965 a Composite Number?

Why is 19,438,965 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 19,438,965 can be evenly divided by 1 3 5 7 9 13 15 21 35 39 45 47 63 65 91 101 105 117 141 195 235 273 303 315 329 423 455 505 585 611 705 707 819 909 987 1,313 1,365 1,515 1,645 1,833 2,115 2,121 2,961 3,055 3,535 3,939 4,095 4,277 4,545 4,747 4,935 5,499 6,363 6,565 9,165 9,191 10,605 11,817 12,831 14,241 14,805 19,695 21,385 23,735 27,495 27,573 31,815 33,229 38,493 42,723 45,955 59,085 61,711 64,155 71,205 82,719 99,687 137,865 166,145 185,133 192,465 213,615 299,061 308,555 413,595 431,977 498,435 555,399 925,665 1,295,931 1,495,305 2,159,885 2,776,995 3,887,793 6,479,655 and 19,438,965, with no remainder.

Since 19,438,965 cannot be divided by just 1 and 19,438,965, 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).