Greatest Common Factor of 669, 360, 21

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

• Greatest Common Factor of 669, 360, 21 by common division method
• Greatest Common Factor of 669, 360, 21 with matching the biggest common factor

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

Factors of 669

List of positive integer factors of 669 that divides 669 without a remainder.

1,3,223,669

Factors of 360

List of positive integer factors of 360 that divides 360 without a remainder.

1,2,3,4,5,6,8,9,10,12,15,18,20,24,30,36,40,45,60,72,90,120,180,360

Factors of 21

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

1,3,7,21

Greatest Common Factor

We found the factors 669,360,21 . The biggest common factor number is the GCF number.
So the greatest common factor 669,360,21 is 3.

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

• GCF of 869, 565, 37
• GCF of 930, 965, 17
• GCF of 251, 721, 81
• GCF of 699, 244, 25
• GCF of 874, 387, 81

1. What is the GCF of 669, 360, 21?

Answer: GCF of 669, 360, 21 is 3.

2. How to Find the GCF of 669, 360, 21

Answer: Greatest Common Factor(GCF) of 669, 360, 21 = 3

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

Step 2: Then multiply all the prime factors GCF(669, 360, 21) = 3.