Greatest Common Factor of 42, 12, 128

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

• Greatest Common Factor of 42, 12, 128 by common division method
• Greatest Common Factor of 42, 12, 128 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 128

List of positive integer factors of 128 that divides 128 without a remainder.

1,2,4,8,16,32,64,128

Greatest Common Factor

We found the factors 42,12,128 . The biggest common factor number is the GCF number.
So the greatest common factor 42,12,128 is 2.

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

• GCF of 64, 70, 562
• GCF of 90, 81, 564
• GCF of 43, 93, 525
• GCF of 69, 86, 256
• GCF of 14, 31, 312

1. What is the GCF of 42, 12, 128?

Answer: GCF of 42, 12, 128 is 2.

2. How to Find the GCF of 42, 12, 128

Answer: Greatest Common Factor(GCF) of 42, 12, 128 = 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, 128) = 2.