Greatest Common Factor of 81, 65, 88, 685

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

• Greatest Common Factor of 81, 65, 88, 685 by common division method
• Greatest Common Factor of 81, 65, 88, 685 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 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

Factors of 65

List of positive integer factors of 65 that divides 65 without a remainder.

1,5,13,65

Factors of 88

List of positive integer factors of 88 that divides 88 without a remainder.

1,2,4,8,11,22,44,88

Factors of 685

List of positive integer factors of 685 that divides 685 without a remainder.

1,5,137,685

Greatest Common Factor

We found the factors 81,65,88,685 . The biggest common factor number is the GCF number.
So the greatest common factor 81,65,88,685 is 1.

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

• GCF of 89, 36, 69, 787
• GCF of 80, 11, 53, 940
• GCF of 31, 66, 65, 841
• GCF of 89, 96, 16, 853
• GCF of 24, 12, 63, 216

1. What is the GCF of 81, 65, 88, 685?

Answer: GCF of 81, 65, 88, 685 is 1.

2. How to Find the GCF of 81, 65, 88, 685

Answer: Greatest Common Factor(GCF) of 81, 65, 88, 685 = 1

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

Step 2: Then multiply all the prime factors GCF(81, 65, 88, 685) = 1.