Greatest Common Factor of 21, 38, 81, 294

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

• Greatest Common Factor of 21, 38, 81, 294 by common division method
• Greatest Common Factor of 21, 38, 81, 294 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 38

List of positive integer factors of 38 that divides 38 without a remainder.

1,2,19,38

Factors of 81

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

1,3,9,27,81

Factors of 294

List of positive integer factors of 294 that divides 294 without a remainder.

1,2,3,6,7,14,21,42,49,98,147,294

Greatest Common Factor

We found the factors 21,38,81,294 . The biggest common factor number is the GCF number.
So the greatest common factor 21,38,81,294 is 1.

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

• GCF of 63, 57, 18, 373
• GCF of 82, 55, 82, 978
• GCF of 73, 76, 14, 424
• GCF of 59, 10, 86, 337
• GCF of 69, 88, 84, 582

1. What is the GCF of 21, 38, 81, 294?

Answer: GCF of 21, 38, 81, 294 is 1.

2. How to Find the GCF of 21, 38, 81, 294

Answer: Greatest Common Factor(GCF) of 21, 38, 81, 294 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 38, 81, 294) = 1.