find the HCF of the following
integars by applying the prime factorisation
method.
12, 15 and 21​

2 thoughts on “find the HCF of the following<br />integars by applying the prime factorisation<br />method.<br />12, 15 and 21​”

1. Answer:

   3

   Step-by-step explanation:

   12=2×2×3

   15=3×5

   21=3×7

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2. Answer:

   hcf is three

   Step-by-step explanation:

   12=2*2*3

   15=3*5

   21=3*7

   because in this common factor is 3

   Reply