Greatest Common Factor of 20, 34, 85, 509

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

• Greatest Common Factor of 20, 34, 85, 509 by common division method
• Greatest Common Factor of 20, 34, 85, 509 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 34

List of positive integer factors of 34 that divides 34 without a remainder.

1,2,17,34

Factors of 85

List of positive integer factors of 85 that divides 85 without a remainder.

1,5,17,85

Factors of 509

List of positive integer factors of 509 that divides 509 without a remainder.

1,509

Greatest Common Factor

We found the factors 20,34,85,509 . The biggest common factor number is the GCF number.
So the greatest common factor 20,34,85,509 is 1.

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

• GCF of 35, 51, 64, 534
• GCF of 60, 84, 41, 950
• GCF of 96, 16, 92, 778
• GCF of 26, 71, 63, 582
• GCF of 10, 57, 72, 934

1. What is the GCF of 20, 34, 85, 509?

Answer: GCF of 20, 34, 85, 509 is 1.

2. How to Find the GCF of 20, 34, 85, 509

Answer: Greatest Common Factor(GCF) of 20, 34, 85, 509 = 1

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

Step 2: Then multiply all the prime factors GCF(20, 34, 85, 509) = 1.