F1_Unit 2_Factors and Multiples

Which list has only prime numbers?

• 2, 3, 4, 5
• 1, 5, 7, 9
• 2, 3, 5, 7
• 2, 4, 6, 8

Which is the prime factorisation of 12 ? 

• 2 x 6

• 2 + 2 + 2 + 2 + 2 + 2 

• 2 x 2 x 3

• 1 x 2 x 2 x 3

Which of the following is NOT a factor of 36?

• 1

• 6

• 9

• 14

List the first 3 multiples of 25

Identify the number that is a multiple of 15...

• 75

• 80

• 85

• 70

Which of the following is a common multiple of 4, 8, and 12?

• 20

• 36

• 48

• 60

Find the Highest Common Factor (HCF) OF 12,  18 & 30

What is the LCM for 10, 15 and 20?

6 is a factor of M and M is a factor of 108.

Which of the numbers below is the possible value of M?

• 20

• 27

• 30

• 36

Howard and Jimmy meet at Klang today. Howard comes to Klang every 8 days, whereas Jimmy comes every 6 days. When will they meet again?

• After 12 days

• After 14 days

• After 24 days

• After 30 days