Question # 1

The LCM of 33,66 and 81 is.

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1770

1872

1782

1287

The HCF of two or more than two umbers, which have no common prime factor, is always.

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1

10

100

1000

Number of methods to find LCM

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1

2

3

4

Prime factorizationof 72 is

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2 x 2 x 2 x 3 x 3

2 x 2 x 2x 9

8 x 3 x 3

8 x 9

Common prime factors of 36 and 48 are

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2 x 2 x 3 x 3

2 x 3 x 8

2 x 2 x 3

2 x 3 x 6

The smallest numebr which divides 11,33,66 completeliy

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1

11

33

66

The HCF of 20,48 and 56 is.

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4

3

5

1

The smallaest number which divides 5,10,15 completelty is.

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15

30

40

50

The HCF of two or more than two numbers, which have no common prime factor, is always.

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2

1

3

4

Prime factorization of 16 is

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2x 8

1 x 16

2 x 2 x 2 x 2

2 x 4 x 2

The greastest numebr which divides two or more given numbers simulataneously is called.

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LCM

HCF

Factorization

Factor

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Mathematics 5th Class Chapter 2 English Medium Online Test MCQs With Answers

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