Greatest Common Factor of 25, 78, 42, 82, 397

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

• Greatest Common Factor of 25, 78, 42, 82, 397 by common division method
• Greatest Common Factor of 25, 78, 42, 82, 397 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 78

List of positive integer factors of 78 that divides 78 without a remainder.

1,2,3,6,13,26,39,78

Factors of 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Factors of 82

List of positive integer factors of 82 that divides 82 without a remainder.

1,2,41,82

Factors of 397

List of positive integer factors of 397 that divides 397 without a remainder.

1,397

Greatest Common Factor

We found the factors 25,78,42,82,397 . The biggest common factor number is the GCF number.
So the greatest common factor 25,78,42,82,397 is 1.

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

• GCF of 36, 44, 10, 12, 414
• GCF of 79, 78, 55, 22, 357
• GCF of 88, 77, 30, 66, 905
• GCF of 54, 86, 10, 12, 845
• GCF of 72, 84, 52, 69, 828

1. What is the GCF of 25, 78, 42, 82, 397?

Answer: GCF of 25, 78, 42, 82, 397 is 1.

2. How to Find the GCF of 25, 78, 42, 82, 397

Answer: Greatest Common Factor(GCF) of 25, 78, 42, 82, 397 = 1

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

Step 2: Then multiply all the prime factors GCF(25, 78, 42, 82, 397) = 1.