Q: Is 945,945 a Composite Number?

Why is 945,945 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 945,945 can be evenly divided by 1 3 5 7 9 11 13 15 21 27 33 35 39 45 49 55 63 65 77 91 99 105 117 135 143 147 165 189 195 231 245 273 297 315 351 385 429 441 455 495 539 585 637 693 715 735 819 945 1,001 1,155 1,287 1,323 1,365 1,485 1,617 1,755 1,911 2,079 2,145 2,205 2,457 2,695 3,003 3,185 3,465 3,861 4,095 4,851 5,005 5,733 6,435 6,615 7,007 8,085 9,009 9,555 10,395 12,285 14,553 15,015 17,199 19,305 21,021 24,255 27,027 28,665 35,035 45,045 63,063 72,765 85,995 105,105 135,135 189,189 315,315 and 945,945, with no remainder.

Since 945,945 cannot be divided by just 1 and 945,945, 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).