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HCF and LCM problems

Total questions: 10

Worksheet time: 19mins

Name
Class
Date
1.

Full form of LCM (Please answer all the full form in complete capital letters)

(a)  

2.

What is the process of finding the largest common factor called ?

a)

HCF or GCD

b)

Only HCF

c)

Only LCM

d)

None of the above

3.

What numbers are not used in HCF

a)

0

b)

Number itself

c)

4

d)

1

4.

What is the HCF of two consecutive even numbers ?

a)

2

b)

1

c)

4

d)

0

5.

Find LCM for 20, 25 and 30

a)

300

b)

I don't know !

c)

No common multiple

d)

5

6.

HCF of 15, 30 and 45

a)

51

b)

5

c)

No such factor

d)

15

7.

LCM for 68, 46 and 90

a)

703890

b)

2

c)

70380

d)

Have no idea

8.

Find HCF for 567 and 786

a)

3

b)

79

c)

5

d)

50

9.

Find LCM for 1992 and 451

a)

245549974

b)

461414

c)

57818749

d)

898392

10.

Find HCF for 78930 and 56698

a)

2

b)

59

c)

5

d)

3