myTestBook.com Math Reading Science Practice Test for Grade 1, 2, 3, 4 & 5    
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Grade: 5,    Subject: Math,    Topic: Factors Highest Common Factor (HCF) Prime Number
Question 1:
Which option shows the prime factorization of 24?

2 × 2 × 3 × 52 × 3 × 5

2 × 2 × 2 × 62 × 2 × 2 × 3
 
Question 2:
Which option shows a prime number?

88131

6462
 
Question 3:
Which shows the prime factorization for 36?

2× 2 ×3×52× 2 ×32×3

2× 2 ×3×32× 3 ×3×3
 
Question 4:
What are the common factors of 10 and 21?

1, 3, 71

21, 2, 5, 10
 
Question 5:
There are few cards on Emily's table. She can divide those cards into groups of 4 cards or groups of 5 cards. Which of the following is a possible number of cards she has on the table?

1512

2024
 
Question 6:
Which option shows all the common factors of 15 and 45?

1, 3, 5, 5, 151, 2, 4, 8

1, 5, 151, 3, 5, 15
 
Question 7:
What are the factors of 25?

1, 5, 251, 3, 5, 25

1, 51, 25
 
Question 8:
Find the Greatest Common Factor of 14 and 28.

728

214
 
Question 9:
Which option below shows the prime factorization of 36?

2 × 2 × 3 × 32 × 3 × 3 × 3

2 × 3 × 32 × 2 × 3 × 3 × 3
 
Question 10:
Find the Greatest Common Factor(GCF) of 17 and 23.

1723

169
 
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