Greatest Common Factor of 21, 86, 73, 15, 26

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

• Greatest Common Factor of 21, 86, 73, 15, 26 by common division method
• Greatest Common Factor of 21, 86, 73, 15, 26 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 21

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

1,3,7,21

Factors of 86

List of positive integer factors of 86 that divides 86 without a remainder.

1,2,43,86

Factors of 73

List of positive integer factors of 73 that divides 73 without a remainder.

1,73

Factors of 15

List of positive integer factors of 15 that divides 15 without a remainder.

1,3,5,15

Factors of 26

List of positive integer factors of 26 that divides 26 without a remainder.

1,2,13,26

Greatest Common Factor

We found the factors 21,86,73,15,26 . The biggest common factor number is the GCF number.
So the greatest common factor 21,86,73,15,26 is 1.

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

• GCF of 73, 94, 94, 71, 54
• GCF of 40, 20, 43, 96, 81
• GCF of 92, 27, 21, 87, 41
• GCF of 68, 87, 84, 57, 85
• GCF of 60, 93, 78, 85, 65

1. What is the GCF of 21, 86, 73, 15, 26?

Answer: GCF of 21, 86, 73, 15, 26 is 1.

2. How to Find the GCF of 21, 86, 73, 15, 26

Answer: Greatest Common Factor(GCF) of 21, 86, 73, 15, 26 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 86, 73, 15, 26) = 1.