Greatest Common Factor of 47, 63, 87, 69, 81

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

• Greatest Common Factor of 47, 63, 87, 69, 81 by common division method
• Greatest Common Factor of 47, 63, 87, 69, 81 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 47

List of positive integer factors of 47 that divides 47 without a remainder.

1,47

Factors of 63

List of positive integer factors of 63 that divides 63 without a remainder.

1,3,7,9,21,63

Factors of 87

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

1,3,29,87

Factors of 69

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

1,3,23,69

Factors of 81

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

1,3,9,27,81

Greatest Common Factor

We found the factors 47,63,87,69,81 . The biggest common factor number is the GCF number.
So the greatest common factor 47,63,87,69,81 is 1.

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

• GCF of 13, 87, 29, 86, 49
• GCF of 97, 10, 73, 86, 58
• GCF of 95, 96, 13, 71, 82
• GCF of 22, 67, 61, 99, 13
• GCF of 72, 76, 25, 63, 38

1. What is the GCF of 47, 63, 87, 69, 81?

Answer: GCF of 47, 63, 87, 69, 81 is 1.

2. How to Find the GCF of 47, 63, 87, 69, 81

Answer: Greatest Common Factor(GCF) of 47, 63, 87, 69, 81 = 1

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

Step 2: Then multiply all the prime factors GCF(47, 63, 87, 69, 81) = 1.