Greatest Common Factor of 80, 57, 12, 820

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

• Greatest Common Factor of 80, 57, 12, 820 by common division method
• Greatest Common Factor of 80, 57, 12, 820 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 80

List of positive integer factors of 80 that divides 80 without a remainder.

1,2,4,5,8,10,16,20,40,80

Factors of 57

List of positive integer factors of 57 that divides 57 without a remainder.

1,3,19,57

Factors of 12

List of positive integer factors of 12 that divides 12 without a remainder.

1,2,3,4,6,12

Factors of 820

List of positive integer factors of 820 that divides 820 without a remainder.

1,2,4,5,10,20,41,82,164,205,410,820

Greatest Common Factor

We found the factors 80,57,12,820 . The biggest common factor number is the GCF number.
So the greatest common factor 80,57,12,820 is 1.

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

• GCF of 90, 46, 89, 346
• GCF of 28, 35, 47, 720
• GCF of 89, 28, 94, 852
• GCF of 44, 72, 56, 824
• GCF of 65, 99, 58, 303

1. What is the GCF of 80, 57, 12, 820?

Answer: GCF of 80, 57, 12, 820 is 1.

2. How to Find the GCF of 80, 57, 12, 820

Answer: Greatest Common Factor(GCF) of 80, 57, 12, 820 = 1

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

Step 2: Then multiply all the prime factors GCF(80, 57, 12, 820) = 1.