Class4 1st Term Exam Revision 23-24

Classify the numbers in groups.

Groups:

(a) Prime numbers

,

(b) Composite numbers

• 81

• 67

• 21

• 2

• 47

• 9

• 91

• 49

• 53

• 97

• 33

• 51

• 57

• 83

• 89

• 3

The largest two-digit prime number is ____ .

The smallest one prime number is ____ .

Multiples of 3 and 12. (Select all answers that apply.)

• 6

• 24

• 72

• 18

Which of the numbers below has factors of 3 and 5?

• 15

• 30

• 20

• 33

Which of the numbers below has factors of 6 and 8?

• 24

• 48

• 36

• 56

Which of the two numbers below has the H.C.F. of 9?

• 9 and 27

• 3 and 9

• 18 and 27

• 1 and 9

Which of the two numbers below has the L.C.M. of 36? (Select all that apply)

• 6 and 9

• 6 and 12

• 9 and 12

• 3 and 36