Find the HCF of 165, 225
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Answer is
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1
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15
Step-by-step explanation:
prime factorisation of 165 =3×11×5
prime factorisation of 225=3×3×5×5
to find HCF we need to multiply comman prime factors of of 165 and 225
the cammon factors are 3,5
3×5=15
therefore HCF is 15
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