Greatest Common Factor of 21, 81, 23, 794

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

• Greatest Common Factor of 21, 81, 23, 794 by common division method
• Greatest Common Factor of 21, 81, 23, 794 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 81

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

1,3,9,27,81

Factors of 23

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

1,23

Factors of 794

List of positive integer factors of 794 that divides 794 without a remainder.

1,2,397,794

Greatest Common Factor

We found the factors 21,81,23,794 . The biggest common factor number is the GCF number.
So the greatest common factor 21,81,23,794 is 1.

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

• GCF of 77, 70, 62, 821
• GCF of 38, 22, 55, 882
• GCF of 92, 93, 18, 414
• GCF of 52, 60, 66, 396
• GCF of 75, 13, 39, 356

1. What is the GCF of 21, 81, 23, 794?

Answer: GCF of 21, 81, 23, 794 is 1.

2. How to Find the GCF of 21, 81, 23, 794

Answer: Greatest Common Factor(GCF) of 21, 81, 23, 794 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 81, 23, 794) = 1.