Greatest Common Factor of 47, 21, 55, 79, 530

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

• Greatest Common Factor of 47, 21, 55, 79, 530 by common division method
• Greatest Common Factor of 47, 21, 55, 79, 530 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 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 55

List of positive integer factors of 55 that divides 55 without a remainder.

1,5,11,55

Factors of 79

List of positive integer factors of 79 that divides 79 without a remainder.

1,79

Factors of 530

List of positive integer factors of 530 that divides 530 without a remainder.

1,2,5,10,53,106,265,530

Greatest Common Factor

We found the factors 47,21,55,79,530 . The biggest common factor number is the GCF number.
So the greatest common factor 47,21,55,79,530 is 1.

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

• GCF of 63, 73, 31, 35, 878
• GCF of 54, 61, 97, 62, 508
• GCF of 59, 86, 50, 79, 512
• GCF of 89, 26, 66, 54, 991
• GCF of 49, 15, 63, 62, 802

1. What is the GCF of 47, 21, 55, 79, 530?

Answer: GCF of 47, 21, 55, 79, 530 is 1.

2. How to Find the GCF of 47, 21, 55, 79, 530

Answer: Greatest Common Factor(GCF) of 47, 21, 55, 79, 530 = 1

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

Step 2: Then multiply all the prime factors GCF(47, 21, 55, 79, 530) = 1.