Greatest Common Factor of 20, 61, 89, 83

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

• Greatest Common Factor of 20, 61, 89, 83 by common division method
• Greatest Common Factor of 20, 61, 89, 83 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 61

List of positive integer factors of 61 that divides 61 without a remainder.

1,61

Factors of 89

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

1,89

Factors of 83

List of positive integer factors of 83 that divides 83 without a remainder.

1,83

Greatest Common Factor

We found the factors 20,61,89,83 . The biggest common factor number is the GCF number.
So the greatest common factor 20,61,89,83 is 1.

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

• GCF of 44, 40, 19, 88
• GCF of 60, 28, 38, 72
• GCF of 22, 96, 45, 82
• GCF of 65, 84, 84, 71
• GCF of 33, 68, 64, 65

1. What is the GCF of 20, 61, 89, 83?

Answer: GCF of 20, 61, 89, 83 is 1.

2. How to Find the GCF of 20, 61, 89, 83

Answer: Greatest Common Factor(GCF) of 20, 61, 89, 83 = 1

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

Step 2: Then multiply all the prime factors GCF(20, 61, 89, 83) = 1.