Greatest Common Factor of 78, 89, 17, 63, 86

Greatest common factor or Greatest common divisor (GCD) can be calculated in two ways

• Greatest Common Factor of 78, 89, 17, 63, 86 by common division method
• Greatest Common Factor of 78, 89, 17, 63, 86 with matching the biggest common factor

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∴ GCF of numbers is 1 because of no common factors present between them.

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 89

List of positive integer factors of 89 that divides 89 without a remainder.

1,89

Factors of 17

List of positive integer factors of 17 that divides 17 without a remainder.

1,17

Factors of 63

List of positive integer factors of 63 that divides 63 without a remainder.

1,3,7,9,21,63

Factors of 86

List of positive integer factors of 86 that divides 86 without a remainder.

1,2,43,86

Greatest Common Factor

We found the factors 78,89,17,63,86 . The biggest common factor number is the GCF number.
So the greatest common factor 78,89,17,63,86 is 1.

Here are some samples of GCF of two or more Numbers calculations.

• GCF of 68, 84, 55, 84, 28
• GCF of 46, 80, 12, 27, 24
• GCF of 23, 84, 17, 56, 31
• GCF of 91, 58, 32, 41, 61
• GCF of 72, 69, 75, 24, 65

1. What is the GCF of 78, 89, 17, 63, 86?

Answer: GCF of 78, 89, 17, 63, 86 is 1.

2. How to Find the GCF of 78, 89, 17, 63, 86

Answer: Greatest Common Factor(GCF) of 78, 89, 17, 63, 86 = 1

Step 1: Divide all the numbers with common prime numbers having remainder zero.

Step 2: Then multiply all the prime factors GCF(78, 89, 17, 63, 86) = 1.