Factor Rainbow Fun!

Explore factors of numbers using the fun and visual factor rainbow method for Grade 5 students.

Grade 5 Math Number SenseFactor Rainbow

Use This Worksheet

Includes

2 Short AnswerFill in the BlanksMultiple ChoiceTrue / False

Standards

CCSS.MATH.CONTENT.4.OA.B.4

Topics

mathfactorsfactor rainbownumber sensegrade 5

7 sections · Free to use · Printable

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Factor Rainbow Fun!

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A Factor Rainbow is a way to find all the factors of a number by pairing them up. Start with 1 and the number itself, then find the next smallest factor and pair it with the largest factor, and so on, until you meet in the middle. Draw arcs to connect the factor pairs, just like a rainbow!

1. Draw a factor rainbow for the number 12. List all the factors.

Factors of 12:

2. Draw a factor rainbow for the number 20. List all the factors.

Factors of 20:

3. Complete the factor rainbow for 18:

1, , 3, 6, , 18

4. Complete the factor rainbow for 24:

1, 2, , 4, 6, , 12,

5. Which number has the factors 1, 2, 3, 4, 6, 8, 12, 24?

6. The number 1 is a factor of every number.

True

False

7. Prime numbers have exactly two factors: 1 and themselves.

True

False

8. Explain in your own words how a factor rainbow helps you find all the factors of a number.