Greatest Common Factor of 39, 68, 13, 81

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

• Greatest Common Factor of 39, 68, 13, 81 by common division method
• Greatest Common Factor of 39, 68, 13, 81 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 39

List of positive integer factors of 39 that divides 39 without a remainder.

1,3,13,39

Factors of 68

List of positive integer factors of 68 that divides 68 without a remainder.

1,2,4,17,34,68

Factors of 13

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

1,13

Factors of 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

Greatest Common Factor

We found the factors 39,68,13,81 . The biggest common factor number is the GCF number.
So the greatest common factor 39,68,13,81 is 1.

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

• GCF of 65, 95, 23, 23
• GCF of 55, 93, 76, 34
• GCF of 53, 79, 54, 95
• GCF of 20, 55, 84, 75
• GCF of 63, 57, 41, 59

1. What is the GCF of 39, 68, 13, 81?

Answer: GCF of 39, 68, 13, 81 is 1.

2. How to Find the GCF of 39, 68, 13, 81

Answer: Greatest Common Factor(GCF) of 39, 68, 13, 81 = 1

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

Step 2: Then multiply all the prime factors GCF(39, 68, 13, 81) = 1.