Greatest Common Factor of 21, 945, 879

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

• Greatest Common Factor of 21, 945, 879 by common division method
• Greatest Common Factor of 21, 945, 879 with matching the biggest common factor

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

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 945

List of positive integer factors of 945 that divides 945 without a remainder.

1,3,5,7,9,15,21,27,35,45,63,105,135,189,315,945

Factors of 879

List of positive integer factors of 879 that divides 879 without a remainder.

1,3,293,879

Greatest Common Factor

We found the factors 21,945,879 . The biggest common factor number is the GCF number.
So the greatest common factor 21,945,879 is 3.

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

• GCF of 93, 816, 902
• GCF of 41, 932, 130
• GCF of 87, 157, 868
• GCF of 98, 564, 416
• GCF of 74, 499, 449

1. What is the GCF of 21, 945, 879?

Answer: GCF of 21, 945, 879 is 3.

2. How to Find the GCF of 21, 945, 879

Answer: Greatest Common Factor(GCF) of 21, 945, 879 = 3

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

Step 2: Then multiply all the prime factors GCF(21, 945, 879) = 3.