Greatest Common Factor of 40, 39, 11, 20

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

• Greatest Common Factor of 40, 39, 11, 20 by common division method
• Greatest Common Factor of 40, 39, 11, 20 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 40

List of positive integer factors of 40 that divides 40 without a remainder.

1,2,4,5,8,10,20,40

Factors of 39

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

1,3,13,39

Factors of 11

List of positive integer factors of 11 that divides 11 without a remainder.

1,11

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 40,39,11,20 . The biggest common factor number is the GCF number.
So the greatest common factor 40,39,11,20 is 1.

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

• GCF of 14, 36, 83, 64
• GCF of 34, 27, 87, 41
• GCF of 55, 73, 44, 54
• GCF of 47, 12, 93, 32
• GCF of 67, 74, 98, 69

1. What is the GCF of 40, 39, 11, 20?

Answer: GCF of 40, 39, 11, 20 is 1.

2. How to Find the GCF of 40, 39, 11, 20

Answer: Greatest Common Factor(GCF) of 40, 39, 11, 20 = 1

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

Step 2: Then multiply all the prime factors GCF(40, 39, 11, 20) = 1.