Greatest Common Factor of 67, 80, 21, 915

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

• Greatest Common Factor of 67, 80, 21, 915 by common division method
• Greatest Common Factor of 67, 80, 21, 915 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 67

List of positive integer factors of 67 that divides 67 without a remainder.

1,67

Factors of 80

List of positive integer factors of 80 that divides 80 without a remainder.

1,2,4,5,8,10,16,20,40,80

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 915

List of positive integer factors of 915 that divides 915 without a remainder.

1,3,5,15,61,183,305,915

Greatest Common Factor

We found the factors 67,80,21,915 . The biggest common factor number is the GCF number.
So the greatest common factor 67,80,21,915 is 1.

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

• GCF of 26, 40, 74, 939
• GCF of 20, 77, 64, 120
• GCF of 44, 11, 87, 912
• GCF of 54, 17, 70, 789
• GCF of 87, 34, 54, 589

1. What is the GCF of 67, 80, 21, 915?

Answer: GCF of 67, 80, 21, 915 is 1.

2. How to Find the GCF of 67, 80, 21, 915

Answer: Greatest Common Factor(GCF) of 67, 80, 21, 915 = 1

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

Step 2: Then multiply all the prime factors GCF(67, 80, 21, 915) = 1.