Greatest Common Factor of 20, 99, 686

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

• Greatest Common Factor of 20, 99, 686 by common division method
• Greatest Common Factor of 20, 99, 686 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 99

List of positive integer factors of 99 that divides 99 without a remainder.

1,3,9,11,33,99

Factors of 686

List of positive integer factors of 686 that divides 686 without a remainder.

1,2,7,14,49,98,343,686

Greatest Common Factor

We found the factors 20,99,686 . The biggest common factor number is the GCF number.
So the greatest common factor 20,99,686 is 1.

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

• GCF of 71, 28, 878
• GCF of 20, 78, 325
• GCF of 53, 16, 989
• GCF of 12, 29, 824
• GCF of 10, 50, 214

1. What is the GCF of 20, 99, 686?

Answer: GCF of 20, 99, 686 is 1.

2. How to Find the GCF of 20, 99, 686

Answer: Greatest Common Factor(GCF) of 20, 99, 686 = 1

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

Step 2: Then multiply all the prime factors GCF(20, 99, 686) = 1.