Question

Find the HCF of 12 , 45 and 75

Answer 1

Answer:

prime factorisation of : 12=2×2×3. 45=5×3×3. 75=5×5×3 .

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Answer 2

Here HCF of 12,45 and 75 is '3'

Step-by-step explanation:

for an easy way do prime factorization of the three numbers

So by that we get

12= 2×2×3×1

45=5×3×3×1

75=5×5×3×1

Now from this pick out the common factor of 12,45,75

That is 1 and 3

Now multiple 1×3= 3

So finally we got the answer that is 3

I hope this is helpful to you