Greatest Common Factor of 20, 81, 82, 122

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

• Greatest Common Factor of 20, 81, 82, 122 by common division method
• Greatest Common Factor of 20, 81, 82, 122 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 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Factors of 81

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

1,3,9,27,81

Factors of 82

List of positive integer factors of 82 that divides 82 without a remainder.

1,2,41,82

Factors of 122

List of positive integer factors of 122 that divides 122 without a remainder.

1,2,61,122

Greatest Common Factor

We found the factors 20,81,82,122 . The biggest common factor number is the GCF number.
So the greatest common factor 20,81,82,122 is 1.

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

• GCF of 17, 62, 44, 895
• GCF of 16, 43, 40, 542
• GCF of 14, 81, 28, 116
• GCF of 95, 81, 53, 884
• GCF of 25, 53, 67, 668

1. What is the GCF of 20, 81, 82, 122?

Answer: GCF of 20, 81, 82, 122 is 1.

2. How to Find the GCF of 20, 81, 82, 122

Answer: Greatest Common Factor(GCF) of 20, 81, 82, 122 = 1

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

Step 2: Then multiply all the prime factors GCF(20, 81, 82, 122) = 1.