Greatest Common Factor of 693, 645, 561

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

• Greatest Common Factor of 693, 645, 561 by common division method
• Greatest Common Factor of 693, 645, 561 with matching the biggest common factor

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

Factors of 693

List of positive integer factors of 693 that divides 693 without a remainder.

1,3,7,9,11,21,33,63,77,99,231,693

Factors of 645

List of positive integer factors of 645 that divides 645 without a remainder.

1,3,5,15,43,129,215,645

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 693,645,561 . The biggest common factor number is the GCF number.
So the greatest common factor 693,645,561 is 3.

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

• GCF of 243, 127, 145
• GCF of 380, 457, 606
• GCF of 297, 186, 834
• GCF of 741, 749, 473
• GCF of 561, 702, 349

1. What is the GCF of 693, 645, 561?

Answer: GCF of 693, 645, 561 is 3.

2. How to Find the GCF of 693, 645, 561

Answer: Greatest Common Factor(GCF) of 693, 645, 561 = 3

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

Step 2: Then multiply all the prime factors GCF(693, 645, 561) = 3.