Greatest Common Factor of 25, 20, 26, 391

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

• Greatest Common Factor of 25, 20, 26, 391 by common division method
• Greatest Common Factor of 25, 20, 26, 391 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 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Factors of 26

List of positive integer factors of 26 that divides 26 without a remainder.

1,2,13,26

Factors of 391

List of positive integer factors of 391 that divides 391 without a remainder.

1,17,23,391

Greatest Common Factor

We found the factors 25,20,26,391 . The biggest common factor number is the GCF number.
So the greatest common factor 25,20,26,391 is 1.

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

• GCF of 73, 75, 39, 664
• GCF of 15, 65, 73, 271
• GCF of 81, 17, 71, 670
• GCF of 85, 97, 58, 153
• GCF of 39, 36, 74, 544

1. What is the GCF of 25, 20, 26, 391?

Answer: GCF of 25, 20, 26, 391 is 1.

2. How to Find the GCF of 25, 20, 26, 391

Answer: Greatest Common Factor(GCF) of 25, 20, 26, 391 = 1

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

Step 2: Then multiply all the prime factors GCF(25, 20, 26, 391) = 1.