Question

20, 30, 40 find the
HCF​

Answer 1

Answer:

10

Step-by-step explanation:

$20 = 2 \times 10\\30 = 3 \times 10\\40 = 4 \times 10$

As you can see, $10$ is the highest common factor of all the number.

$\therefore \fbox{HCF = 10}$

Answer 2

Answer:

10

Step-by-step explanation:

PLEASE MARK MY ANSWER AS BRAINLIEST

Using Euclid's algorithm,

40=30 x 1 + 10

30 = 10 x 3 + 0

HCF(30,40)=10

Now,

20=10 x 2 + 0

HCF(20,30,40)=10