Factors And Multiples

Consider the ten numbers: 1, 7, 15, 23, 39, 43, 91, 171, 250, 1000. The correct statement below is

• There are 4 prime numbers and 5 composite numbers

• There are 4 prime numbers and 6 composite numbers

• There are 3 prime numbers and 7 composite numbers

• There are 3 prime numbers and 6 composite numbers

𝐻𝐶𝐹 of 36, 54 and 63 is …

• 12

• 3

• 9

• 6

𝐿𝐶𝑀 of 63, 105 and 420 is …

• 1260

• 420

• 745

• 630

Product of its prime factors from 5832 is …

• 
• 
• 
• 

Clara runs every 3 days
She swims every Thursday
On Thursday 2 February 2023, Clara both runs and swims.
What will be next date on which she both runs and swims?

• 9 February 2023

• 23 February 2023

• 1 March 2023

• 5 February 2023

168 oranges, 252 apples and 420 pears are equally packed in cartons so that no fruit is left.
What is the biggest possible number of cartons needed?

• 96

• 21

• 84

• 42

• 8

• 5

• 6

• 7

Identify the following statements
(I)      If 𝑎 and 𝑏 two prime numbers such that 𝑎+𝑏 is another prime number, then 𝑎 or 𝑏=2
(II)     The sum of two prime numbers is always odd number
(III)    The product of HCM and LCM of two numbers is equal to the product of two numbers
(IV)    The product of HCM and LCM of three numbers is equal to the product of three numbers
The correct statements is…

• 1 & 3

• 1 & 2

• 2 & 4

• 3 & 4

A number has exactly 12 factors. Two of the factor are 9 and 30.
The number is ...

• 90

• 150

• 60

• 180

Who is your homeroom class teacher name?

• Mr. Agus

• Mr. Anis

• Mr. Anang

• Mr. Andy