Greatest Common Factor of 20, 70, 69, 987

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

• Greatest Common Factor of 20, 70, 69, 987 by common division method
• Greatest Common Factor of 20, 70, 69, 987 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 70

List of positive integer factors of 70 that divides 70 without a remainder.

1,2,5,7,10,14,35,70

Factors of 69

List of positive integer factors of 69 that divides 69 without a remainder.

1,3,23,69

Factors of 987

List of positive integer factors of 987 that divides 987 without a remainder.

1,3,7,21,47,141,329,987

Greatest Common Factor

We found the factors 20,70,69,987 . The biggest common factor number is the GCF number.
So the greatest common factor 20,70,69,987 is 1.

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

• GCF of 81, 75, 86, 799
• GCF of 68, 95, 51, 981
• GCF of 68, 86, 73, 110
• GCF of 45, 21, 59, 166
• GCF of 56, 72, 52, 483

1. What is the GCF of 20, 70, 69, 987?

Answer: GCF of 20, 70, 69, 987 is 1.

2. How to Find the GCF of 20, 70, 69, 987

Answer: Greatest Common Factor(GCF) of 20, 70, 69, 987 = 1

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

Step 2: Then multiply all the prime factors GCF(20, 70, 69, 987) = 1.