Greatest Common Factor of 42, 395, 128

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

• Greatest Common Factor of 42, 395, 128 by common division method
• Greatest Common Factor of 42, 395, 128 with matching the biggest common factor

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∴ GCF of numbers is 1 because of no common factors present between them.

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 395

List of positive integer factors of 395 that divides 395 without a remainder.

1,5,79,395

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 42,395,128 . The biggest common factor number is the GCF number.
So the greatest common factor 42,395,128 is 1.

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

• GCF of 37, 142, 458
• GCF of 52, 109, 492
• GCF of 41, 165, 397
• GCF of 83, 239, 633
• GCF of 36, 436, 713

1. What is the GCF of 42, 395, 128?

Answer: GCF of 42, 395, 128 is 1.

2. How to Find the GCF of 42, 395, 128

Answer: Greatest Common Factor(GCF) of 42, 395, 128 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 395, 128) = 1.