Greatest Common Factor of 72, 28, 81, 838

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

• Greatest Common Factor of 72, 28, 81, 838 by common division method
• Greatest Common Factor of 72, 28, 81, 838 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 72

List of positive integer factors of 72 that divides 72 without a remainder.

1,2,3,4,6,8,9,12,18,24,36,72

Factors of 28

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

1,2,4,7,14,28

Factors of 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

Factors of 838

List of positive integer factors of 838 that divides 838 without a remainder.

1,2,419,838

Greatest Common Factor

We found the factors 72,28,81,838 . The biggest common factor number is the GCF number.
So the greatest common factor 72,28,81,838 is 1.

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

• GCF of 47, 78, 91, 453
• GCF of 42, 77, 46, 239
• GCF of 17, 21, 81, 148
• GCF of 85, 42, 47, 878
• GCF of 73, 85, 27, 613

1. What is the GCF of 72, 28, 81, 838?

Answer: GCF of 72, 28, 81, 838 is 1.

2. How to Find the GCF of 72, 28, 81, 838

Answer: Greatest Common Factor(GCF) of 72, 28, 81, 838 = 1

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

Step 2: Then multiply all the prime factors GCF(72, 28, 81, 838) = 1.