Greatest Common Factor of 561, 1800

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

• Greatest Common Factor of 561, 1800 by common division method
• Greatest Common Factor of 561, 1800 with matching the biggest common factor

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∴ 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 1800

List of positive integer factors of 1800 that divides 1800 without a remainder.

1,2,3,4,5,6,8,9,10,12,15,18,20,24,25,30,36,40,45,50,60,72,75,90,100,120,150,180,200,225,300,360,450,600,900,1800

Greatest Common Factor

We found the factors 561,1800 . The biggest common factor number is the GCF number.
So the greatest common factor 561,1800 is 3.

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

• GCF of 394, 6465
• GCF of 900, 9291
• GCF of 335, 7356
• GCF of 312, 5621
• GCF of 221, 1104

1. What is the GCF of 561, 1800?

Answer: GCF of 561, 1800 is 3.

2. How to Find the GCF of 561, 1800

Answer: Greatest Common Factor(GCF) of 561, 1800 = 3

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

Step 2: Then multiply all the prime factors GCF(561, 1800) = 3.