Question

the HCF of 12,18 is​

Answer 1

Step-by-step explanation:

Steps 1:

Find all the factors of each given number.

Step 2:

Find common factors of the given number.

Step 3:

The greatest of all the factors obtained in Step 2, is the required highest common factor (H.C.F).

For Example:

1. Find the highest common factor (H.C.F) of 6 and 9.

Factors of 6 = 1, 2, 3 and 6.

Factors of 9 = 1, 3 and 9.

Therefore, common factor of 6 and 9 = 1 and 3.

Highest common factor (H.C.F) of 6 and 9 = 3.

Therefore, 3 is H.C.F. or G.C.D. greatest common divisor of 6 and 9.

H.C.F. or G.C.D. of given numbers is the greatest number which divides all the numbers without leaving a remainder.

HERE S YOU'RE ANSWER

Find the highest common factor (H.C.F) of 12 and 18.

Factors of 12 = 1, 2, 3, 4, 6 and 12.

Factors of 18 = 1, 2, 3, 6, 9 and 18.

Therefore, common factor of 12 and 18 = 1, 2, 3 and 6.

Highest common factor (H.C.F) of 12 and 18 = 6 [since 6 is the highest common factor].

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Answer 2

Answer:

The HCF of the given numbers is 6.

Step-by-step explanation:

Given: The numbers are 12 and 18.

We have to find the HCF of the above numbers.

• As we know that the greatest common divisor of two or more integers, which are not all zero, is the largest positive integer that divides each of the integers.

We are solving in the following way:

We have,

The numbers are 12 and 18.

First, we will find the factors of the above numbers.

The factors of 12 are: $1, 2, 3, 4, 6, 12$

The factors of 18 are: $1, 2, 3, 6, 9, 18$

From the above, we can see that 6 is the largest positive integer that divides each of the integers.

Then the greatest common factor(HCF) is 6.

In this problem, we are assuming we have to find the HCF of the given numbers.

Q. Find HCF of 12 and 18.