Greatest Common Factor of 42, 77, 65, 747

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

• Greatest Common Factor of 42, 77, 65, 747 by common division method
• Greatest Common Factor of 42, 77, 65, 747 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 77

List of positive integer factors of 77 that divides 77 without a remainder.

1,7,11,77

Factors of 65

List of positive integer factors of 65 that divides 65 without a remainder.

1,5,13,65

Factors of 747

List of positive integer factors of 747 that divides 747 without a remainder.

1,3,9,83,249,747

Greatest Common Factor

We found the factors 42,77,65,747 . The biggest common factor number is the GCF number.
So the greatest common factor 42,77,65,747 is 1.

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

• GCF of 54, 34, 12, 944
• GCF of 88, 97, 74, 163
• GCF of 91, 48, 18, 763
• GCF of 98, 72, 62, 706
• GCF of 21, 15, 15, 188

1. What is the GCF of 42, 77, 65, 747?

Answer: GCF of 42, 77, 65, 747 is 1.

2. How to Find the GCF of 42, 77, 65, 747

Answer: Greatest Common Factor(GCF) of 42, 77, 65, 747 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 77, 65, 747) = 1.