Greatest Common Factor of 21, 39, 74, 58, 86

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

• Greatest Common Factor of 21, 39, 74, 58, 86 by common division method
• Greatest Common Factor of 21, 39, 74, 58, 86 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 39

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

1,3,13,39

Factors of 74

List of positive integer factors of 74 that divides 74 without a remainder.

1,2,37,74

Factors of 58

List of positive integer factors of 58 that divides 58 without a remainder.

1,2,29,58

Factors of 86

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

1,2,43,86

Greatest Common Factor

We found the factors 21,39,74,58,86 . The biggest common factor number is the GCF number.
So the greatest common factor 21,39,74,58,86 is 1.

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

• GCF of 50, 35, 61, 10, 30
• GCF of 34, 76, 32, 86, 48
• GCF of 85, 16, 16, 65, 93
• GCF of 78, 68, 41, 10, 57
• GCF of 41, 38, 82, 68, 49

1. What is the GCF of 21, 39, 74, 58, 86?

Answer: GCF of 21, 39, 74, 58, 86 is 1.

2. How to Find the GCF of 21, 39, 74, 58, 86

Answer: Greatest Common Factor(GCF) of 21, 39, 74, 58, 86 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 39, 74, 58, 86) = 1.