Question

find the HCF by the prime factorisation method of 84,105,168​

Answer 1

Answer:

HCF(84, 105, 168) = 21

Step-by-step explanation:

Prime factorization of the numbers:

84 = 2 × 2 × 3 × 7

105 = 3 × 5 × 7

168 = 2 × 2 × 2 × 3 × 7

HCF(84, 105, 168)

= 3 × 7

= 21

OR

I suggest you just search online hcf calculator on google there also you can find.

Hope it helps.

Answer 2

Answer:

84=2*2*7*3

105=3*7*5

168=2*2*2*7*3

HFC=7*3

Ans=21