Greatest Common Factor of 17, 56, 31, 97, 78

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

• Greatest Common Factor of 17, 56, 31, 97, 78 by common division method
• Greatest Common Factor of 17, 56, 31, 97, 78 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 17

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

1,17

Factors of 56

List of positive integer factors of 56 that divides 56 without a remainder.

1,2,4,7,8,14,28,56

Factors of 31

List of positive integer factors of 31 that divides 31 without a remainder.

1,31

Factors of 97

List of positive integer factors of 97 that divides 97 without a remainder.

1,97

Factors of 78

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

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

Greatest Common Factor

We found the factors 17,56,31,97,78 . The biggest common factor number is the GCF number.
So the greatest common factor 17,56,31,97,78 is 1.

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

• GCF of 96, 78, 54, 82, 90
• GCF of 27, 56, 28, 61, 97
• GCF of 57, 83, 63, 69, 23
• GCF of 37, 43, 33, 78, 76
• GCF of 64, 61, 42, 47, 87

1. What is the GCF of 17, 56, 31, 97, 78?

Answer: GCF of 17, 56, 31, 97, 78 is 1.

2. How to Find the GCF of 17, 56, 31, 97, 78

Answer: Greatest Common Factor(GCF) of 17, 56, 31, 97, 78 = 1

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

Step 2: Then multiply all the prime factors GCF(17, 56, 31, 97, 78) = 1.