Greatest Common Factor of 20, 42, 82, 989

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

• Greatest Common Factor of 20, 42, 82, 989 by common division method
• Greatest Common Factor of 20, 42, 82, 989 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 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Factors of 82

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

1,2,41,82

Factors of 989

List of positive integer factors of 989 that divides 989 without a remainder.

1,23,43,989

Greatest Common Factor

We found the factors 20,42,82,989 . The biggest common factor number is the GCF number.
So the greatest common factor 20,42,82,989 is 1.

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

• GCF of 58, 16, 44, 626
• GCF of 63, 52, 27, 502
• GCF of 38, 15, 23, 173
• GCF of 52, 29, 57, 670
• GCF of 66, 76, 25, 984

1. What is the GCF of 20, 42, 82, 989?

Answer: GCF of 20, 42, 82, 989 is 1.

2. How to Find the GCF of 20, 42, 82, 989

Answer: Greatest Common Factor(GCF) of 20, 42, 82, 989 = 1

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

Step 2: Then multiply all the prime factors GCF(20, 42, 82, 989) = 1.