Greatest Common Factor of 28, 23, 39, 66, 442

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

• Greatest Common Factor of 28, 23, 39, 66, 442 by common division method
• Greatest Common Factor of 28, 23, 39, 66, 442 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 28

List of positive integer factors of 28 that divides 28 without a remainder.

1,2,4,7,14,28

Factors of 23

List of positive integer factors of 23 that divides 23 without a remainder.

1,23

Factors of 39

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

1,3,13,39

Factors of 66

List of positive integer factors of 66 that divides 66 without a remainder.

1,2,3,6,11,22,33,66

Factors of 442

List of positive integer factors of 442 that divides 442 without a remainder.

1,2,13,17,26,34,221,442

Greatest Common Factor

We found the factors 28,23,39,66,442 . The biggest common factor number is the GCF number.
So the greatest common factor 28,23,39,66,442 is 1.

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

• GCF of 74, 26, 96, 69, 146
• GCF of 49, 26, 75, 40, 919
• GCF of 42, 29, 92, 70, 352
• GCF of 72, 52, 83, 70, 410
• GCF of 21, 29, 77, 62, 767

1. What is the GCF of 28, 23, 39, 66, 442?

Answer: GCF of 28, 23, 39, 66, 442 is 1.

2. How to Find the GCF of 28, 23, 39, 66, 442

Answer: Greatest Common Factor(GCF) of 28, 23, 39, 66, 442 = 1

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

Step 2: Then multiply all the prime factors GCF(28, 23, 39, 66, 442) = 1.