Free. Exclusive. Just for you.
Four unique services that make learning easier, faster, and smarter - only on our website.

Complete the factorization of numbers into prime factors using tree diagrams.

A math worksheet showing factor trees for numbers 45, 24, 36, and 40, with instructions to complete factorization into prime numbers.

A math worksheet showing factor trees for numbers 45, 24, 36, and 40, with instructions to complete factorization into prime numbers.

JPG 1000×1413 89.8 KB Free · Personal Use
Quality Assured by Worksheets Library Team
Reviewed for educational accuracy and age-appropriateness
ID: #813899
⭐
Show Answer Key & Explanations Step-by-step solution for: Prime Factorization exercise
▼
To solve the problem, we need to complete the factorization of the given numbers (45, 24, 36, and 40) into their prime factors. Let's go through each number step by step.

---

1. Factorization of 45


The number 45 is already partially factored as:
```
45
/ \
5 9
/ \
3 3
```
- The prime factors are: \( 5 \times 3 \times 3 \).

Thus, the complete factorization of 45 is:
\[
45 = 5 \times 3 \times 3
\]

---

2. Factorization of 24


The number 24 is partially factored as:
```
24
/ \
8 3
/ \
4 2
/ \
2 2
```
- The prime factors are: \( 3 \times 2 \times 2 \times 2 \).

Thus, the complete factorization of 24 is:
\[
24 = 3 \times 2 \times 2 \times 2
\]

---

3. Factorization of 36


The number 36 is partially factored as:
```
36
/ \
6 6
/ \ / \
2 3 2 3
```
- The prime factors are: \( 2 \times 3 \times 2 \times 3 \).

Thus, the complete factorization of 36 is:
\[
36 = 2 \times 3 \times 2 \times 3
\]

---

4. Factorization of 40


The number 40 is partially factored as:
```
40
/ \
5 8
/ \
4 2
/ \
2 2
```
- The prime factors are: \( 5 \times 2 \times 2 \times 2 \).

Thus, the complete factorization of 40 is:
\[
40 = 5 \times 2 \times 2 \times 2
\]

---

Final Answers


Putting it all together, the complete factorizations are:
\[
\boxed{
45 = 5 \times 3 \times 3, \quad
24 = 3 \times 2 \times 2 \times 2, \quad
36 = 2 \times 3 \times 2 \times 3, \quad
40 = 5 \times 2 \times 2 \times 2
}
\]
Parent Tip: Review the logic above to help your child master the concept of prime factorization worksheet 5th grade.
Print Download

How to use

Click Print to open a print-ready version directly in your browser, or use Download to save the file to your device. The ⭐ Answer button generates an AI answer key instantly - useful for teachers who need a quick reference. Need a different version? Our AI Worksheet Generator lets you create a custom worksheet on any topic in seconds.

(view all prime factorization worksheet 5th grade)

Prime Factorization Worksheet by Teach Simple
Prime Factorization worksheet | Live Worksheets
5th Grade Math Worksheets
Using Factor Trees Worksheet for 5th - 6th Grade | Lesson Planet
Free worksheets for prime factorization / find factors of a number
Prime Factorization Worksheet page
Prime Factorization - Practice 7-2 Worksheet for 3rd - 5th Grade ...
Prime Factorization Worksheet page
Prime Factorization Worksheets - Math Monks
Factors Worksheets | Printable Factors and Multiples Worksheets