Question

Hcf 78,84 and 90 by listing factors

Answer 1

Step-by-step explanation:

Given Input numbers are 90, 78, 84

To find the GCF of numbers using factoring list out all the factors of each number

Factors of 90

List of positive integer factors of 90 that divides 90 without a remainder.

1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90

Factors of 78

List of positive integer factors of 78 that divides 78 without a remainder.

1, 2, 3, 6, 13, 26, 39, 78

Factors of 84

List of positive integer factors of 84 that divides 84 without a remainder.

1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84

Greatest Common Factor

We found the factors of 90, 78, 84 . The biggest common factor number is the GCF number.

So the Greatest Common Factor 90, 78, 84 is 6.

Therefore, GCF of numbers 90, 78, 84 is 6

here GCF and HCF is same

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