This challenging worksheet has students answer multiple-choice questions, and fill in blanks to practice factors and multiples skills.
It includes 9 questions across 2 sections for focused practice.
Style:
Factors and Multiples
Part A: Multiple Choice
Circle the best answer for each question.
1. Red lights flash every 6 seconds and blue lights every 8 seconds. They flash together and next flash together after how many seconds?
A) 14
B) 24
C) 36
D) 48
2. How many composite numbers are between 1 and 15?
A) 6
B) 7
C) 8
D) 9
3. What is the GCF of 45 and 75?
A) 5
B) 9
C) 15
D) 25
4. What is the LCM of 14 and 21?
A) 28
B) 42
C) 84
D) 294
Part B: Fill in the Blank
Write the correct answer on each line.
1. The prime factorization of 84 is 2 × 2 × 3 × 7.
2. The LCM of 10 and 15 is 30.
3. A number divisible by 9 is also always divisible by 3.
4. The GCF of 56 and 84 is 28.
5. The smallest number divisible by both 8 and 12 is 24.
Factors and Multiples
★ Part A: Multiple Choice
Circle the best answer for each question.
1. Red lights flash every 6 seconds and blue lights every 8 seconds. They flash together and next flash together after how many seconds?
A) 14
B) 24
C) 36
D) 48
2. How many composite numbers are between 1 and 15?
A) 6
B) 7
C) 8
D) 9
3. What is the GCF of 45 and 75?
A) 5
B) 9
C) 15
D) 25
4. What is the LCM of 14 and 21?
A) 28
B) 42
C) 84
D) 294
★ Part B: Fill in the Blank
Write the correct answer on each line.
1) The prime factorization of 84 is 2 × 2 × 3 × 7.
2) The LCM of 10 and 15 is 30.
3) A number divisible by 9 is also always divisible by 3.
4) The GCF of 56 and 84 is 28.
5) The smallest number divisible by both 8 and 12 is 24.
Ready to Practice?
Complete each section carefully.
9 Questions
12-18 minutes
Auto-graded
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