Table of Contents

- 1 How many factors does 15 have?
- 2 Which is smallest factor of 15?
- 3 What are the common factors of 15 and 24?
- 4 What is a prime factorization of 15?
- 5 Which is the largest factor of 72?
- 6 What are all the factors of 16?
- 7 What is the GCF of 15 and 25?
- 8 What are 2 different ways of factoring 15?
- 9 What is the prime factorization of 155?
- 10 How do you calculate the prime factorization of a number?

## How many factors does 15 have?

The terms factor and multiple are sometimes confused with each other. Factors of 15 include 3 and 5; multiples of 15 include 30, 45, 60 (and more). See more below and at multiple.

## Which is smallest factor of 15?

So, 1 is the smallest factor of 15.

**What can be multiplied to get 15?**

List of Factor Pairs for 15

- 1 x 15 = 15.
- 3 x 5 = 15.
- 5 x 3 = 15.
- 15 x 1 = 15.

### What are the common factors of 15 and 24?

There are 2 common factors of 15 and 24, that are 1 and 3. Therefore, the greatest common factor of 15 and 24 is 3.

### What is a prime factorization of 15?

So, the prime factorization of 15 is 3 × 5, where 3 and 5 both are prime numbers.

**What is the prime factor of 16?**

Factors of 16 are numbers that, when multiplied in pairs give the product as 16. There are 5 factors of 16, which are 1, 2, 4, 8, and 16. Here, 16 is the biggest factor. The Prime Factors of 16 are 1, 2, 4, 8, 16 and its Factors in Pairs are (1, 16), (2, 8), and (4, 4).

#### Which is the largest factor of 72?

Factors of 72 are the list of integers that can be evenly divided into 72. There are overall 12 factors of 72 among which 72 is the biggest factor and 2 and 3 are its prime factors. The sum of all factors of 72 is 195.

#### What are all the factors of 16?

Therefore, the factors of 16 are 1, 2, 4, 8, and 16 and the prime factorization of 16 is 16 = 2 × 2 × 2 × 2.

**What is the GCF of 12 15 and 24?**

As you can see when you list out the factors of each number, 3 is the greatest number that 12, 15, and 24 divides into.

## What is the GCF of 15 and 25?

5

Answer: GCF of 15 and 25 is 5.

## What are 2 different ways of factoring 15?

For instance, factors of 15 are 3 and 5, because 3×5 = 15. Some numbers have more than one factorization (more than one way of being factored). For instance, 12 can be factored as 1×12, 2×6, or 3×4.

**What are the prime factors of 15?**

In other words, a prime factor of 15 divides the number 15 without any rest, modulo 0. For 15, the prime factors are: 3, 5. By definition, 1 is not a prime number.

### What is the prime factorization of 155?

A composite number is a positive integer that has at least one positive divisor other than one or the number itself. In other words, a composite number is any integer greater than one that is not a prime number. The prime factorization of 155 = 5•31. The prime factors of 155 are 5 and 31.

### How do you calculate the prime factorization of a number?

The prime factors of a number are all the prime numbers that, when multiplied together, equal the original number. You can find the prime factorization of a number by using a factor tree and dividing the number into smaller parts. You can begin by finding a prime number and factoring out that number, then continuing on in that manner.