Greatest Common Factor of 65, 78, 30, 109

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

• Greatest Common Factor of 65, 78, 30, 109 by common division method
• Greatest Common Factor of 65, 78, 30, 109 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 65

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

1,5,13,65

Factors of 78

List of positive integer factors of 78 that divides 78 without a remainder.

1,2,3,6,13,26,39,78

Factors of 30

List of positive integer factors of 30 that divides 30 without a remainder.

1,2,3,5,6,10,15,30

Factors of 109

List of positive integer factors of 109 that divides 109 without a remainder.

1,109

Greatest Common Factor

We found the factors 65,78,30,109 . The biggest common factor number is the GCF number.
So the greatest common factor 65,78,30,109 is 1.

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

• GCF of 52, 83, 50, 774
• GCF of 53, 21, 37, 165
• GCF of 99, 28, 25, 146
• GCF of 17, 12, 11, 665
• GCF of 82, 46, 73, 495

1. What is the GCF of 65, 78, 30, 109?

Answer: GCF of 65, 78, 30, 109 is 1.

2. How to Find the GCF of 65, 78, 30, 109

Answer: Greatest Common Factor(GCF) of 65, 78, 30, 109 = 1

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

Step 2: Then multiply all the prime factors GCF(65, 78, 30, 109) = 1.