약수·배수와 소인수분해 단원 종합

F.1Answer yes or no.

1. 1
   Is 8 a factor of 187? 
2. 2
   Is 3 a factor of 8? 

F.2List the factors from least to greatest.

1. 3
   List all the factors of 75.
2. 4
   List all the factors of 36.

F.3List all the factor pairs.

1. 5
   List all the factor pairs of 95.
2. 6
   List all the factor pairs of 86.

F.4List the multiples.

1. 7
   List the first five multiples of 13.
2. 8
   List the first five multiples of 15.

F.5Find the least common multiple.

1. 9
   Find the least common multiple (LCM) of 4 and 12.
2. 10
   Find the least common multiple (LCM) of 8 and 10.

F.6Use the divisibility rules for 2, 3, 5, 9, and 10. When asked which divide a number, list all of them.

1. 11
   Is 306 divisible by 9? 
2. 12
   Is 745 divisible by 9? 

F.7Write prime or composite.

1. 13
   Is 71 prime or composite?
2. 14
   Is 89 prime or composite?

F.8Write each number as a product of prime numbers.

1. 15
   Write the prime factorization of 96.
2. 16
   Write the prime factorization of 24.

F.9Answer each question.

1. 17
   Write the prime factorization of 48.
2. 18
   Write the prime factorization of 45.

F.1Identify Factors

1. 1no
2. 2no

F.2List the Factors

1. 31, 3, 5, 15, 25, 75
2. 41, 2, 3, 4, 6, 9, 12, 18, 36

F.3Factor Pairs

1. 5$1\times 95$, $5\times 19$
2. 6$1\times 86$, $2\times 43$

F.4Identify Multiples

1. 713, 26, 39, 52, 65
2. 815, 30, 45, 60, 75

F.5Least Common Multiple

1. 912
2. 1040

F.6Divisibility Rules

1. 11yes
2. 12no

F.7Prime or Composite

1. 13prime
2. 14prime

F.8Prime Factorization

1. 15$2\times 2\times 2\times 2\times 2\times 3$
2. 16$2\times 2\times 2\times 3$

F.9Prime & Composite Numbers

1. 17$2\times 2\times 2\times 2\times 3$
2. 18$3\times 3\times 5$