Greatest Common Factor of 42, 16, 56, 309

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

• Greatest Common Factor of 42, 16, 56, 309 by common division method
• Greatest Common Factor of 42, 16, 56, 309 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 16

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

1,2,4,8,16

Factors of 56

List of positive integer factors of 56 that divides 56 without a remainder.

1,2,4,7,8,14,28,56

Factors of 309

List of positive integer factors of 309 that divides 309 without a remainder.

1,3,103,309

Greatest Common Factor

We found the factors 42,16,56,309 . The biggest common factor number is the GCF number.
So the greatest common factor 42,16,56,309 is 1.

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

• GCF of 94, 97, 86, 229
• GCF of 51, 95, 33, 286
• GCF of 71, 74, 25, 258
• GCF of 74, 41, 21, 772
• GCF of 42, 48, 68, 401

1. What is the GCF of 42, 16, 56, 309?

Answer: GCF of 42, 16, 56, 309 is 1.

2. How to Find the GCF of 42, 16, 56, 309

Answer: Greatest Common Factor(GCF) of 42, 16, 56, 309 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 16, 56, 309) = 1.