Greatest Common Factor of 9, 8, 13, 40

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

• Greatest Common Factor of 9, 8, 13, 40 by common division method
• Greatest Common Factor of 9, 8, 13, 40 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 9

List of positive integer factors of 9 that divides 9 without a remainder.

1,3,9

Factors of 8

List of positive integer factors of 8 that divides 8 without a remainder.

1,2,4,8

Factors of 13

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

1,13

Factors of 40

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

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

Greatest Common Factor

We found the factors 9,8,13,40 . The biggest common factor number is the GCF number.
So the greatest common factor 9,8,13,40 is 1.

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

• GCF of 5, 1, 45, 22
• GCF of 1, 1, 45, 40
• GCF of 8, 1, 79, 69
• GCF of 6, 5, 15, 20
• GCF of 6, 4, 22, 34

1. What is the GCF of 9, 8, 13, 40?

Answer: GCF of 9, 8, 13, 40 is 1.

2. How to Find the GCF of 9, 8, 13, 40

Answer: Greatest Common Factor(GCF) of 9, 8, 13, 40 = 1

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

Step 2: Then multiply all the prime factors GCF(9, 8, 13, 40) = 1.