Q: Is 71,447,775 a Composite Number?

Why is 71,447,775 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 71,447,775 can be evenly divided by 1 3 5 7 15 21 23 25 35 61 69 75 97 105 115 161 175 183 291 305 345 427 483 485 525 575 679 805 915 1,281 1,403 1,455 1,525 1,725 2,037 2,135 2,231 2,415 2,425 3,395 4,025 4,209 4,575 5,917 6,405 6,693 7,015 7,275 9,821 10,185 10,675 11,155 12,075 15,617 16,975 17,751 21,045 29,463 29,585 32,025 33,465 35,075 41,419 46,851 49,105 50,925 55,775 78,085 88,755 105,225 124,257 136,091 147,315 147,925 167,325 207,095 234,255 245,525 390,425 408,273 443,775 621,285 680,455 736,575 952,637 1,035,475 1,171,275 2,041,365 2,857,911 3,106,425 3,402,275 4,763,185 10,206,825 14,289,555 23,815,925 and 71,447,775, with no remainder.

Since 71,447,775 cannot be divided by just 1 and 71,447,775, 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).