Greatest Common Factor of 855, 905, 138

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

• Greatest Common Factor of 855, 905, 138 by common division method
• Greatest Common Factor of 855, 905, 138 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 855

List of positive integer factors of 855 that divides 855 without a remainder.

1,3,5,9,15,19,45,57,95,171,285,855

Factors of 905

List of positive integer factors of 905 that divides 905 without a remainder.

1,5,181,905

Factors of 138

List of positive integer factors of 138 that divides 138 without a remainder.

1,2,3,6,23,46,69,138

Greatest Common Factor

We found the factors 855,905,138 . The biggest common factor number is the GCF number.
So the greatest common factor 855,905,138 is 1.

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

• GCF of 314, 386, 340
• GCF of 332, 985, 645
• GCF of 443, 413, 482
• GCF of 898, 447, 137
• GCF of 311, 319, 578

1. What is the GCF of 855, 905, 138?

Answer: GCF of 855, 905, 138 is 1.

2. How to Find the GCF of 855, 905, 138

Answer: Greatest Common Factor(GCF) of 855, 905, 138 = 1

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

Step 2: Then multiply all the prime factors GCF(855, 905, 138) = 1.