Question

HCF of 92, 115 and 138

Answer 1

Step-by-step explanation:

The instructions to find the GCF of 92, 115 and 138 are the next:

1. Decompose all numbers into prime factors

92 |2 46

2 23 23 1 115 5 23 23 1 138 2 69 3 23 23 1

2. Write all numbers as the product of its prime factors

Prime factors of 92 = 22 . 23

Prime factors of 115 = 5 . 23

Prime factors of 138 = 2 . 3 . 23

3. Choose the common prime factors with the lowest exponent

Common prime factors: 23

Common prime factors with the lowest exponent: 231

4. Calculate the Greatest Common Factor or GCF

Remember, to find the GCF of several numbers you must multiply the common prime factors with the lowest exponent.

GCF = 231 = 23

Answer 2

Answer:

23

Step-by-step explanation:

Factors of

• 92 = 2² . 23
• 115 = 5 . 23
• 138 = 2 . 3 . 23

HCF if the common factor of all three numbers which is 23.

If this helps mark Brainliest