Greatest Common Factor of 13, 69, 25, 391

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

• Greatest Common Factor of 13, 69, 25, 391 by common division method
• Greatest Common Factor of 13, 69, 25, 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 13

List of positive integer factors of 13 that divides 13 without a remainder.

1,13

Factors of 69

List of positive integer factors of 69 that divides 69 without a remainder.

1,3,23,69

Factors of 25

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

1,5,25

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 13,69,25,391 . The biggest common factor number is the GCF number.
So the greatest common factor 13,69,25,391 is 1.

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

• GCF of 76, 81, 25, 768
• GCF of 58, 48, 76, 534
• GCF of 66, 82, 33, 950
• GCF of 25, 56, 44, 935
• GCF of 75, 14, 79, 614

1. What is the GCF of 13, 69, 25, 391?

Answer: GCF of 13, 69, 25, 391 is 1.

2. How to Find the GCF of 13, 69, 25, 391

Answer: Greatest Common Factor(GCF) of 13, 69, 25, 391 = 1

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

Step 2: Then multiply all the prime factors GCF(13, 69, 25, 391) = 1.