Greatest Common Factor of 78, 13, 38, 65

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

• Greatest Common Factor of 78, 13, 38, 65 by common division method
• Greatest Common Factor of 78, 13, 38, 65 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

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

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 13

List of positive integer factors of 13 that divides 13 without a remainder.

1,13

Factors of 38

List of positive integer factors of 38 that divides 38 without a remainder.

1,2,19,38

Factors of 65

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

1,5,13,65

Greatest Common Factor

We found the factors 78,13,38,65 . The biggest common factor number is the GCF number.
So the greatest common factor 78,13,38,65 is 1.

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

• GCF of 11, 73, 74, 51
• GCF of 45, 59, 83, 99
• GCF of 11, 12, 15, 97
• GCF of 66, 54, 41, 56
• GCF of 67, 91, 18, 58

1. What is the GCF of 78, 13, 38, 65?

Answer: GCF of 78, 13, 38, 65 is 1.

2. How to Find the GCF of 78, 13, 38, 65

Answer: Greatest Common Factor(GCF) of 78, 13, 38, 65 = 1

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

Step 2: Then multiply all the prime factors GCF(78, 13, 38, 65) = 1.