Greatest Common Factor of 20, 12, 65, 417

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

• Greatest Common Factor of 20, 12, 65, 417 by common division method
• Greatest Common Factor of 20, 12, 65, 417 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 12

List of positive integer factors of 12 that divides 12 without a remainder.

1,2,3,4,6,12

Factors of 65

List of positive integer factors of 65 that divides 65 without a remainder.

1,5,13,65

Factors of 417

List of positive integer factors of 417 that divides 417 without a remainder.

1,3,139,417

Greatest Common Factor

We found the factors 20,12,65,417 . The biggest common factor number is the GCF number.
So the greatest common factor 20,12,65,417 is 1.

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

• GCF of 21, 52, 65, 380
• GCF of 38, 82, 11, 713
• GCF of 45, 66, 94, 310
• GCF of 76, 63, 54, 669
• GCF of 30, 99, 48, 127

1. What is the GCF of 20, 12, 65, 417?

Answer: GCF of 20, 12, 65, 417 is 1.

2. How to Find the GCF of 20, 12, 65, 417

Answer: Greatest Common Factor(GCF) of 20, 12, 65, 417 = 1

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

Step 2: Then multiply all the prime factors GCF(20, 12, 65, 417) = 1.