Multiple & Factors Worksheet-5

Multiple & Factors Worksheet-5

 

  1. What is the least common multiple of 4, 5, and 16?

A. 30                   B. 45                   C. 56                   D. 80

 

  1. Which list shows the factors of 32?

A. 1, 2, 4, 8        B. 1, 3, 6, 8        C. 1, 5, 7, 9         D. 1, 2, 4, 6

 

  1. Find the least common multiple of 3, 9, 21?

A. 45                   B. 63                   C. 42                   D. 56

 

  1. What is the least common multiple of 9 and 12?

A. 18                   B. 36                   C. 45                   D. 63

 

  1. Abhishek has Chess class every 3 days and guitar lesson every 5 days. If he had both a Chess class and a guitar lesson on Monday, in how many days will he have both on the same day again?

A. 12                   B. 10                   C. 15                    D. 16

 

  1. Which option shows the least common multiple of 8 and 15?

A. 60                   B. 120                 C. 48                   D. 75

 

  1. Which is a factor of 20?

A. 6                     B. 3                     C. 7                      D. 5

 

  1. Which set of numbers will have 28 as its least common multiple (LCM)?

A. 2, 3 and 5      B. 4, 6 and 9     C. 1, 4 and 7      D. 1, 4 and 8

 

  1. Which is a prime number?

A. 15                    B. 14                    C. 17                    D. 12

 

  1. Which of these shows LCM of 6, 18 and 27?

A. 81                   B. 90                   C. 96                   D. 54

 

Answer Key:

(1)-D; (2)-A; (3)-B; (4)-B; (5)-C; (6)-B; (7)-D; (8)-C; (9)-C; (10)-D