Q: Is 25,415,445 a Composite Number?

Why is 25,415,445 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 25,415,445 can be evenly divided by 1 3 5 11 15 19 33 55 57 67 95 121 165 201 209 285 335 363 605 627 737 1,005 1,045 1,273 1,331 1,815 2,211 2,299 3,135 3,685 3,819 3,993 6,365 6,655 6,897 8,107 11,055 11,495 14,003 19,095 19,965 24,321 25,289 34,485 40,535 42,009 70,015 75,867 89,177 121,605 126,445 154,033 210,045 267,531 379,335 445,885 462,099 770,165 1,337,655 1,694,363 2,310,495 5,083,089 8,471,815 and 25,415,445, with no remainder.

Since 25,415,445 cannot be divided by just 1 and 25,415,445, 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).