Prime factorization and GCF.

Prime factorization and GCF.

Assessment

Flashcard

Mathematics

6th Grade

Practice Problem

Hard

CCSS
4.OA.B.4

Standards-aligned

Created by

Wayground Content

FREE Resource

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16 questions

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1.

FLASHCARD QUESTION

Front

What is prime factorization?

Back

Prime factorization is the process of expressing a number as the product of its prime factors.

Tags

CCSS.4.OA.B.4

2.

FLASHCARD QUESTION

Front

What is the GCF (Greatest Common Factor)?

Back

The GCF is the largest positive integer that divides all the numbers in a given set without leaving a remainder.

3.

FLASHCARD QUESTION

Front

How do you find the GCF using a factor tree?

Back

1. Break down each number into its prime factors using a factor tree. 2. Identify the common prime factors. 3. Multiply the common prime factors to find the GCF.

4.

FLASHCARD QUESTION

Front

What are the prime factors of 18?

Back

The prime factors of 18 are 2 and 3 (18 = 2 x 3 x 3 or 2 x 3^2).

5.

FLASHCARD QUESTION

Front

What are the prime factors of 24?

Back

The prime factors of 24 are 2 and 3 (24 = 2 x 2 x 2 x 3 or 2^3 x 3).

6.

FLASHCARD QUESTION

Front

Find the GCF of 18 and 24 using their prime factors.

Back

The GCF of 18 and 24 is 6 (common prime factors: 2 and 3; 2^1 x 3^1 = 6).

7.

FLASHCARD QUESTION

Front

Which pair of numbers has a GCF of 3? 15 and 27, 20 and 30, 45 and 15, 9 and 18.

Back

15 and 27.

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