Greatest Common Factor of 87, 20, 81, 947

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

• Greatest Common Factor of 87, 20, 81, 947 by common division method
• Greatest Common Factor of 87, 20, 81, 947 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 87

List of positive integer factors of 87 that divides 87 without a remainder.

1,3,29,87

Factors of 20

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

1,2,4,5,10,20

Factors of 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

Factors of 947

List of positive integer factors of 947 that divides 947 without a remainder.

1,947

Greatest Common Factor

We found the factors 87,20,81,947 . The biggest common factor number is the GCF number.
So the greatest common factor 87,20,81,947 is 1.

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

• GCF of 63, 17, 22, 923
• GCF of 12, 54, 71, 616
• GCF of 62, 31, 52, 129
• GCF of 34, 60, 45, 139
• GCF of 62, 11, 70, 460

1. What is the GCF of 87, 20, 81, 947?

Answer: GCF of 87, 20, 81, 947 is 1.

2. How to Find the GCF of 87, 20, 81, 947

Answer: Greatest Common Factor(GCF) of 87, 20, 81, 947 = 1

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

Step 2: Then multiply all the prime factors GCF(87, 20, 81, 947) = 1.