Question

BERCISE 3.4
1. Use prime factorisation to find the HCF of:
(a)40,75​

Answer 1

Answer:

5

Step-by-step explanation:

75 =40×1+35

40=35×1+5

35= 5×7

HCF =5

Answer 2

Answer:

40 = 2*2*2*5

75 = 5*5*3

Both these numbers have 5 as their common factor that is both the number can be divisble by 5.

Hence the HCF( highest common factor) is 5

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