Multiple & Factors Worksheet-8

Multiple & Factors Worksheet-8

 

  1. The prime number which comes just after 43 is:

      A. 49                   B. 45                   C. 47                   D. none of these

 

  1. Number of prime numbers from 1 to 50 are:

      A. 18                   B. 12                   C. 15                    D. 20

 

  1. The numbers which are multiple of 2 are called:

      A. odd                 B. even               C. prime             D. composite

 

  1. Factor x factor is equal to:

      A. difference      B. multiple        C. sum                D. none of these

 

  1. Common factors of 9 and 36 are:

      A. 1, 3, 9             B. 1, 4,3,5,9       C. 1, 4, 5             D. none of these

 

  1. LCM of two numbers = ______

      A. Product of numbers ÷ their HCF

      B. Product of numbers × their HCF

      C. Product of numbers

      D. none of these

 

  1. H.C.F. of two co-prime number is:

      A. 1                      B. 0                     C. 2                     D. none of these

 

  1. An example for twin primes is:

      A. 5, 11               B. 3, 5                 C. 11, 17              D. 3, 7

 

  1. L.C.M. of 12, 24 and 36 is:

      A. 36                   B. 24                   C. 72                   D. 108

 

  1. L.C.M. of two co-prime numbers is their:

      A. Sum               B. difference     C. product         D. quotient

 

Answer Key:

(11)-C; (12)-C; (13)-B; (14)-B; (15)-A; (16)-A; (17)-A; (18)-B; (19)-C; (20)-C