Greatest Common Factor of 198, 991, 20

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

• Greatest Common Factor of 198, 991, 20 by common division method
• Greatest Common Factor of 198, 991, 20 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 198

List of positive integer factors of 198 that divides 198 without a remainder.

1,2,3,6,9,11,18,22,33,66,99,198

Factors of 991

List of positive integer factors of 991 that divides 991 without a remainder.

1,991

Factors of 20

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

1,2,4,5,10,20

Greatest Common Factor

We found the factors 198,991,20 . The biggest common factor number is the GCF number.
So the greatest common factor 198,991,20 is 1.

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

• GCF of 783, 578, 50
• GCF of 319, 550, 47
• GCF of 210, 443, 81
• GCF of 986, 873, 73
• GCF of 256, 226, 54

1. What is the GCF of 198, 991, 20?

Answer: GCF of 198, 991, 20 is 1.

2. How to Find the GCF of 198, 991, 20

Answer: Greatest Common Factor(GCF) of 198, 991, 20 = 1

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

Step 2: Then multiply all the prime factors GCF(198, 991, 20) = 1.