Question

what is the hcf of 15,20,30 by using prime factorisation

Answer 1

Answer:

5

Step-by-step explanation:

prime factors;

15= 3*5

20=2*2*5

30=2*3*5

hence hcf= 5

Answer provided by Gauthmath

Answer 2

Answer:

HCF of 15 and 20 is 5

Step-by-step explanation:

The HCF of two non-zero integers, x(15) and y(20), is the highest positive integer m(5) that divides both x(15) and y(20) without any remainder.