Greatest Common Factor of 42, 12, 688

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

• Greatest Common Factor of 42, 12, 688 by common division method
• Greatest Common Factor of 42, 12, 688 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ So the GCF of the given numbers is 2 = 2

Factors of 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Factors of 12

List of positive integer factors of 12 that divides 12 without a remainder.

1,2,3,4,6,12

Factors of 688

List of positive integer factors of 688 that divides 688 without a remainder.

1,2,4,8,16,43,86,172,344,688

Greatest Common Factor

We found the factors 42,12,688 . The biggest common factor number is the GCF number.
So the greatest common factor 42,12,688 is 2.

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

• GCF of 42, 90, 274
• GCF of 95, 72, 443
• GCF of 75, 63, 415
• GCF of 55, 72, 306
• GCF of 94, 94, 846

1. What is the GCF of 42, 12, 688?

Answer: GCF of 42, 12, 688 is 2.

2. How to Find the GCF of 42, 12, 688

Answer: Greatest Common Factor(GCF) of 42, 12, 688 = 2

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

Step 2: Then multiply all the prime factors GCF(42, 12, 688) = 2.