Greatest Common Factor of 20, 81, 17, 246

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

• Greatest Common Factor of 20, 81, 17, 246 by common division method
• Greatest Common Factor of 20, 81, 17, 246 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 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Factors of 81

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

1,3,9,27,81

Factors of 17

List of positive integer factors of 17 that divides 17 without a remainder.

1,17

Factors of 246

List of positive integer factors of 246 that divides 246 without a remainder.

1,2,3,6,41,82,123,246

Greatest Common Factor

We found the factors 20,81,17,246 . The biggest common factor number is the GCF number.
So the greatest common factor 20,81,17,246 is 1.

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

• GCF of 46, 64, 33, 491
• GCF of 50, 65, 91, 602
• GCF of 25, 89, 60, 227
• GCF of 96, 94, 36, 493
• GCF of 24, 96, 36, 872

1. What is the GCF of 20, 81, 17, 246?

Answer: GCF of 20, 81, 17, 246 is 1.

2. How to Find the GCF of 20, 81, 17, 246

Answer: Greatest Common Factor(GCF) of 20, 81, 17, 246 = 1

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

Step 2: Then multiply all the prime factors GCF(20, 81, 17, 246) = 1.