Greatest Common Factor of 80, 28, 71, 428

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

• Greatest Common Factor of 80, 28, 71, 428 by common division method
• Greatest Common Factor of 80, 28, 71, 428 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 28

List of positive integer factors of 28 that divides 28 without a remainder.

1,2,4,7,14,28

Factors of 71

List of positive integer factors of 71 that divides 71 without a remainder.

1,71

Factors of 428

List of positive integer factors of 428 that divides 428 without a remainder.

1,2,4,107,214,428

Greatest Common Factor

We found the factors 80,28,71,428 . The biggest common factor number is the GCF number.
So the greatest common factor 80,28,71,428 is 1.

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

• GCF of 37, 59, 83, 230
• GCF of 68, 81, 22, 876
• GCF of 51, 66, 43, 769
• GCF of 96, 51, 99, 645
• GCF of 32, 95, 38, 857

1. What is the GCF of 80, 28, 71, 428?

Answer: GCF of 80, 28, 71, 428 is 1.

2. How to Find the GCF of 80, 28, 71, 428

Answer: Greatest Common Factor(GCF) of 80, 28, 71, 428 = 1

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

Step 2: Then multiply all the prime factors GCF(80, 28, 71, 428) = 1.