Greatest Common Factor of 672, 612, 21

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

• Greatest Common Factor of 672, 612, 21 by common division method
• Greatest Common Factor of 672, 612, 21 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 672

List of positive integer factors of 672 that divides 672 without a remainder.

1,2,3,4,6,7,8,12,14,16,21,24,28,32,42,48,56,84,96,112,168,224,336,672

Factors of 612

List of positive integer factors of 612 that divides 612 without a remainder.

1,2,3,4,6,9,12,17,18,34,36,51,68,102,153,204,306,612

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 672,612,21 . The biggest common factor number is the GCF number.
So the greatest common factor 672,612,21 is 3.

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

• GCF of 567, 238, 80
• GCF of 494, 638, 38
• GCF of 938, 275, 54
• GCF of 821, 944, 37
• GCF of 438, 994, 70

1. What is the GCF of 672, 612, 21?

Answer: GCF of 672, 612, 21 is 3.

2. How to Find the GCF of 672, 612, 21

Answer: Greatest Common Factor(GCF) of 672, 612, 21 = 3

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

Step 2: Then multiply all the prime factors GCF(672, 612, 21) = 3.