Greatest Common Factor of 861, 137, 561

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

• Greatest Common Factor of 861, 137, 561 by common division method
• Greatest Common Factor of 861, 137, 561 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 861

List of positive integer factors of 861 that divides 861 without a remainder.

1,3,7,21,41,123,287,861

Factors of 137

List of positive integer factors of 137 that divides 137 without a remainder.

1,137

Factors of 561

List of positive integer factors of 561 that divides 561 without a remainder.

1,3,11,17,33,51,187,561

Greatest Common Factor

We found the factors 861,137,561 . The biggest common factor number is the GCF number.
So the greatest common factor 861,137,561 is 1.

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

• GCF of 956, 342, 968
• GCF of 749, 330, 305
• GCF of 444, 693, 750
• GCF of 393, 624, 672
• GCF of 859, 407, 673

1. What is the GCF of 861, 137, 561?

Answer: GCF of 861, 137, 561 is 1.

2. How to Find the GCF of 861, 137, 561

Answer: Greatest Common Factor(GCF) of 861, 137, 561 = 1

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

Step 2: Then multiply all the prime factors GCF(861, 137, 561) = 1.