Greatest Common Factor of 36, 68, 22, 4, 21

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

• Greatest Common Factor of 36, 68, 22, 4, 21 by common division method
• Greatest Common Factor of 36, 68, 22, 4, 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 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 68

List of positive integer factors of 68 that divides 68 without a remainder.

1,2,4,17,34,68

Factors of 22

List of positive integer factors of 22 that divides 22 without a remainder.

1,2,11,22

Factors of 4

List of positive integer factors of 4 that divides 4 without a remainder.

1,2,4

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 36,68,22,4,21 . The biggest common factor number is the GCF number.
So the greatest common factor 36,68,22,4,21 is 1.

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

• GCF of 83, 68, 61, 6, 78
• GCF of 35, 31, 41, 3, 91
• GCF of 63, 89, 26, 8, 31
• GCF of 19, 28, 70, 3, 15
• GCF of 71, 41, 46, 3, 77

1. What is the GCF of 36, 68, 22, 4, 21?

Answer: GCF of 36, 68, 22, 4, 21 is 1.

2. How to Find the GCF of 36, 68, 22, 4, 21

Answer: Greatest Common Factor(GCF) of 36, 68, 22, 4, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(36, 68, 22, 4, 21) = 1.