Question

129, 215 and 387 Find the HCF of each of the following using prime factorisation method ​

Answer 1

Step-by-step explanation:

By prime factorisation method,

129 = 3 x 43

215 = 5 x 43

387 = 3 x 3 x 43

Here, 43 is the common factor(divisor) that divides everyone commonly.

So, the H.C.F is 43.