Greatest Common Factor of 561, 489, 861

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

• Greatest Common Factor of 561, 489, 861 by common division method
• Greatest Common Factor of 561, 489, 861 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ So the GCF of the given numbers is 3 = 3

Factors of 561

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

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

Factors of 489

List of positive integer factors of 489 that divides 489 without a remainder.

1,3,163,489

Factors of 861

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

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

Greatest Common Factor

We found the factors 561,489,861 . The biggest common factor number is the GCF number.
So the greatest common factor 561,489,861 is 3.

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

• GCF of 510, 181, 849
• GCF of 139, 674, 783
• GCF of 493, 571, 182
• GCF of 995, 664, 402
• GCF of 576, 183, 771

1. What is the GCF of 561, 489, 861?

Answer: GCF of 561, 489, 861 is 3.

2. How to Find the GCF of 561, 489, 861

Answer: Greatest Common Factor(GCF) of 561, 489, 861 = 3

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

Step 2: Then multiply all the prime factors GCF(561, 489, 861) = 3.