Question

Find 2 pairs of different numbers such that their HCF is 18

Answer 1

Answer:

36,54 are the 2 pairs of HCF of 18

Step-by-step explanation:

just should be divisible by 18

Answer 2

(18,36), (54,72)

Explanation:

HCF or Highest Common Factor is the greatest number which divides each of the two or more numbers. HCF is also called the Greatest Common Measure (GCM) and Greatest Common Divisor(GCD).

HCF of two numbers is the highest factor that can divide the two numbers, evenly. HCF can be evaluated for two or more than two numbers.  It is the greatest divisor for any two or more numbers, that can equally or completely divide the given numbers.

For Example: The Highest common factor of 60 and 75 is 15 because 15 is the largest number which can divide both 60 and 75 exactly.

Therefore, for HCF to be 18, both the numbers should be divisible by 18.

The pairs can possibly be (18,36), (54,72) which are multiples of 18.

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