Greatest Common Factor of 34, 36, 13, 21

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

• Greatest Common Factor of 34, 36, 13, 21 by common division method
• Greatest Common Factor of 34, 36, 13, 21 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 34

List of positive integer factors of 34 that divides 34 without a remainder.

1,2,17,34

Factors of 36

List of positive integer factors of 36 that divides 36 without a remainder.

1,2,3,4,6,9,12,18,36

Factors of 13

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

1,13

Factors of 21

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

1,3,7,21

Greatest Common Factor

We found the factors 34,36,13,21 . The biggest common factor number is the GCF number.
So the greatest common factor 34,36,13,21 is 1.

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

• GCF of 36, 25, 92, 97
• GCF of 15, 24, 60, 38
• GCF of 68, 86, 95, 64
• GCF of 98, 59, 58, 10
• GCF of 21, 69, 42, 54

1. What is the GCF of 34, 36, 13, 21?

Answer: GCF of 34, 36, 13, 21 is 1.

2. How to Find the GCF of 34, 36, 13, 21

Answer: Greatest Common Factor(GCF) of 34, 36, 13, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(34, 36, 13, 21) = 1.