Question

Find HCF of 20 and 70
by
prime factenrzetion methord​

Answer 1

Answer:

Hi bro

Step-by-step explanation:

Prime factorization of 20:

$20 \\ \downarrow \\ 5 \times 2 \times 2$

Prime factorization of 70:

$70 \\ \downarrow \\ 5 \times 7 \times 2$

Take the common number......

Here 5 and 2 are the common factors for 20 and 70.

$\therefore \: 5 \times 2 = 10$

Hence, 10 is the $\boxed{\sf{\purple{HCF}}}$