Students count the factors of 48, find how many primes exist between 20 and 30, and compute the LCM of 8 and 12. Part B has five fill-in-the-blank problems about the GCF of 24 and 36, a property of primes greater than 2, and how many factor pairs 100 has.
Counting factors and finding primes in a range requires systematic application of factoring skills rather than simple recall.
Style:
Factors and Multiples
Part A: Multiple Choice
Circle the best answer for each question.
1. How many factors does 48 have?
A) 8
B) 9
C) 10
D) 12
2. How many prime numbers are between 20 and 30?
A) 1
B) 2
C) 3
D) 4
3. What is the least common multiple of 8 and 12?
A) 16
B) 24
C) 48
D) 96
4. Is 51 prime or composite?
A) Prime
B) Composite
C) Neither
D) Both
Part B: Fill in the Blank
Write the correct answer on each line.
1. The GCF of 24 and 36 is 12.
2. All prime numbers greater than 2 are odd numbers.
3. The number 100 has 5 factor pairs.
4. The LCM of 5 and 12 is 60.
5. The prime factorization of 36 is 2 × 2 × 3 × 3.
Factors and Multiples
★ Part A: Multiple Choice
Circle the best answer for each question.
1. How many factors does 48 have?
A) 8
B) 9
C) 10
D) 12
2. How many prime numbers are between 20 and 30?
A) 1
B) 2
C) 3
D) 4
3. What is the least common multiple of 8 and 12?
A) 16
B) 24
C) 48
D) 96
4. Is 51 prime or composite?
A) Prime
B) Composite
C) Neither
D) Both
★ Part B: Fill in the Blank
Write the correct answer on each line.
1) The GCF of 24 and 36 is 12.
2) All prime numbers greater than 2 are odd numbers.
3) The number 100 has 5 factor pairs.
4) The LCM of 5 and 12 is 60.
5) The prime factorization of 36 is 2 × 2 × 3 × 3.
Ready to Practice?
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9 Questions
12-18 minutes
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