Greatest Common Factor of 40, 5, 68, 13

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

• Greatest Common Factor of 40, 5, 68, 13 by common division method
• Greatest Common Factor of 40, 5, 68, 13 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 5

List of positive integer factors of 5 that divides 5 without a remainder.

1,5

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

Greatest Common Factor

We found the factors 40,5,68,13 . The biggest common factor number is the GCF number.
So the greatest common factor 40,5,68,13 is 1.

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

• GCF of 89, 9, 87, 65
• GCF of 47, 4, 77, 38
• GCF of 44, 2, 64, 98
• GCF of 29, 5, 12, 71
• GCF of 63, 3, 88, 35

1. What is the GCF of 40, 5, 68, 13?

Answer: GCF of 40, 5, 68, 13 is 1.

2. How to Find the GCF of 40, 5, 68, 13

Answer: Greatest Common Factor(GCF) of 40, 5, 68, 13 = 1

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

Step 2: Then multiply all the prime factors GCF(40, 5, 68, 13) = 1.