# HCF and LCM

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• Q1

LCM of 36 and 72 is

Marks:1

72

##### Explanation:
72 is the least multiple of 36 and 72
• Q2

The two numbers which have only 1 as their common factor are called

Marks:1

co-primes

##### Explanation:
co-primes do not have any factor except 1.
• Q3

The two numbers which have only 1 as their common factor are called

Marks:1

co-primes.

##### Explanation:
Co-primes do not have any other factor except 1.
• Q4

H.C.F of two numbers is

Marks:1

##### Explanation:

Since, Product of two numbers = L.C.M × H.C.F

• Q5

Find the first five multiples of 7.

Marks:2

7 X 1 = 7

7 X 2 = 14

7 X 3 = 21

7 X 4 = 28

7 X 5 = 35
Therefore, the first five multiples of 7 are 7, 14, 21, 28, and 35.
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