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Name _______________________________ Date ____________________ HOMEWORK: DAY 1
Directions: Write each prime number in the “Prime” column, and write each composite number in the “Composite” column. PRIME COMPOSITE 2, 3, 4, 5, 6, 7, 8, 9, 21, 22, 23, 29, 30, 31, 32, 33, 37, 38, 39, 40 Directions: Label each number as prime or composite. If the number is composite, list all of its factors. We did the first one for you! 1. 2. 8 31 Composite, 1,2,4,8
3. 5. 4. 48 6. 56 55 67 C – Factors © 2011 by Wowzers, LLC -­‐ All Rights Reserved Name _______________________________ Date ____________________ HOMEWORK: DAY 2
Directions: In the following questions, you will need to find the prime factorization of each number. Remember that expressing a number as a product of primes is called prime factorization. Here’s an example: 12 = 6 × 2 2 is our first prime number! Can we divide 6 by anything besides 6 and 1? Yes! 6 is divisible by 2 and 3. 6 = 2 × 3 2 and 3 are also prime numbers. What are the prime numbers that factor into 12? 2, 2, and 3 12 = 2 × 2 × 3 1. 16 = 2. 24 = 3. 30 = 4. 32 = 5. 35 = 6. 36 = 7. 42 = 8. 44 = 9. 48 = 10. 50 = C – Factors © 2011 by Wowzers, LLC -­‐ All Rights Reserved Name _______________________________ Date ____________________ HOMEWORK: DAY 3 Directions: For each number pair, list all the factors they have in common and the greatest common factor (GCF). Remember, the greatest common factor is the largest factor that two numbers have in common. We did the first one for you! 1. 2. 4, 6 1, 2 GCF: 2 3. 4. 16, 24 GCF: 5. 6. 28, 36 GCF: 7. 8. 45, 63 GCF: 9. 10. 50, 60 GCF: 6, 9 GCF: 10, 25 GCF: 40, 48 GCF: 40, 60 GCF: 50, 75 GCF: C – Factors © 2011 by Wowzers, LLC -­‐ All Rights Reserved Name _______________________________ Date ____________________ HOMEWORK: DAY 4 Directions: For each number pair, find both the greatest common factor (GCF) and the least common multiple (LCM). We did the first one for you! 1. 2. 6, 8 3. 8, 12 6, 10 GCF: 2 LCM: 24 GCF: LCM: GCF: LCM: 4. 6. 8, 10 5. 9, 12 8, 9 GCF: LCM: GCF: LCM: GCF: LCM: 7. 8. 9. 10, 14 GCF: LCM: 8, 14 GCF: LCM: 12, 48 GCF: LCM: Writing in Math! Explain how to find the greatest common factor and the least common multiple for the numbers 6 and 9. C – Factors © 2011 by Wowzers, LLC -­‐ All Rights Reserved
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