Greatest Common Factor of 42, 20, 16, 340

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

• Greatest Common Factor of 42, 20, 16, 340 by common division method
• Greatest Common Factor of 42, 20, 16, 340 with matching the biggest common factor

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∴ 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 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Factors of 16

List of positive integer factors of 16 that divides 16 without a remainder.

1,2,4,8,16

Factors of 340

List of positive integer factors of 340 that divides 340 without a remainder.

1,2,4,5,10,17,20,34,68,85,170,340

Greatest Common Factor

We found the factors 42,20,16,340 . The biggest common factor number is the GCF number.
So the greatest common factor 42,20,16,340 is 2.

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

• GCF of 44, 62, 24, 582
• GCF of 11, 16, 88, 611
• GCF of 12, 15, 30, 503
• GCF of 93, 83, 19, 985
• GCF of 92, 97, 17, 488

1. What is the GCF of 42, 20, 16, 340?

Answer: GCF of 42, 20, 16, 340 is 2.

2. How to Find the GCF of 42, 20, 16, 340

Answer: Greatest Common Factor(GCF) of 42, 20, 16, 340 = 2

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

Step 2: Then multiply all the prime factors GCF(42, 20, 16, 340) = 2.