Greatest Common Factor of 25, 80, 28, 671

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

• Greatest Common Factor of 25, 80, 28, 671 by common division method
• Greatest Common Factor of 25, 80, 28, 671 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 25

List of positive integer factors of 25 that divides 25 without a remainder.

1,5,25

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 671

List of positive integer factors of 671 that divides 671 without a remainder.

1,11,61,671

Greatest Common Factor

We found the factors 25,80,28,671 . The biggest common factor number is the GCF number.
So the greatest common factor 25,80,28,671 is 1.

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

• GCF of 97, 83, 34, 409
• GCF of 74, 41, 58, 173
• GCF of 76, 63, 69, 557
• GCF of 30, 24, 45, 878
• GCF of 94, 28, 29, 338

1. What is the GCF of 25, 80, 28, 671?

Answer: GCF of 25, 80, 28, 671 is 1.

2. How to Find the GCF of 25, 80, 28, 671

Answer: Greatest Common Factor(GCF) of 25, 80, 28, 671 = 1

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

Step 2: Then multiply all the prime factors GCF(25, 80, 28, 671) = 1.