HCF & LCM

Which of the following is the prime factors of 35?

• 1 and 5

• 1 and 7

• 5 and 7

• 1, 5 and 7

The HCF for 4, 8 and x is 2. Find the value of x .

• 6

• 12

• 16

• 20

Given the LCM for m , n and 5 is 30. If

 $m<n$  and  $n<6$  , determine the value of m.

• m = 3  , n = 2

• m = 2 , n = 3

• m = 3 , n = 10

• m = 10 , n = 3

The diagram above shows the factors of 32. What are the the missing factors of 32?

• 2, 3 and 8

• 2 , 3 and 16

• 2 , 8 and 16

• 3 , 8 and 16

What is the HCF of 12 , 18 and 30?

• 2

• 4

• 5

• 6

Is 7 a factor of 73?

• Yes

• No

Is 6 a common factor 18, 24 and 36?

• Yes

• No

Is 144 a multiple of 12?

• Yes

• No

Is 111 a prime number?

• Yes

• No

Abu has 36 pieces of stamps from Malaysia and 54 pieces of stamps from abroad. He plans to keep all those stamps in an album where each page has the same number of stamps from Malaysia and foreign countries. Calculate the maximum number of pages that are needed in the album.

• 2

• 3

• 9

• 18