Greatest Common Factor of 39, 81, 47, 20

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

• Greatest Common Factor of 39, 81, 47, 20 by common division method
• Greatest Common Factor of 39, 81, 47, 20 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 39

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

1,3,13,39

Factors of 81

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

1,3,9,27,81

Factors of 47

List of positive integer factors of 47 that divides 47 without a remainder.

1,47

Factors of 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Greatest Common Factor

We found the factors 39,81,47,20 . The biggest common factor number is the GCF number.
So the greatest common factor 39,81,47,20 is 1.

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

• GCF of 75, 39, 74, 63
• GCF of 80, 46, 73, 14
• GCF of 31, 12, 62, 16
• GCF of 43, 68, 73, 10
• GCF of 79, 54, 55, 93

1. What is the GCF of 39, 81, 47, 20?

Answer: GCF of 39, 81, 47, 20 is 1.

2. How to Find the GCF of 39, 81, 47, 20

Answer: Greatest Common Factor(GCF) of 39, 81, 47, 20 = 1

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

Step 2: Then multiply all the prime factors GCF(39, 81, 47, 20) = 1.