Question

Find hcf of follwing number using prime factorisation.
45,90,105

Answer 1

Answer:15

Step-by-step explanation:by factorisation method:

45 = 3*5*3

90= 3*5*6

105= 3*5*7

So hcommon factors are 3 and 5 but highest will be 15 so hcf= 15

Answer 2

Answer:

answer is 15

very easy

but sooory i am not giving full ans