Greatest Common Factor of 20, 39, 23, 510

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

• Greatest Common Factor of 20, 39, 23, 510 by common division method
• Greatest Common Factor of 20, 39, 23, 510 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 39

List of positive integer factors of 39 that divides 39 without a remainder.

1,3,13,39

Factors of 23

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

1,23

Factors of 510

List of positive integer factors of 510 that divides 510 without a remainder.

1,2,3,5,6,10,15,17,30,34,51,85,102,170,255,510

Greatest Common Factor

We found the factors 20,39,23,510 . The biggest common factor number is the GCF number.
So the greatest common factor 20,39,23,510 is 1.

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

• GCF of 77, 95, 59, 732
• GCF of 49, 25, 54, 595
• GCF of 38, 31, 27, 340
• GCF of 52, 85, 29, 459
• GCF of 84, 72, 93, 264

1. What is the GCF of 20, 39, 23, 510?

Answer: GCF of 20, 39, 23, 510 is 1.

2. How to Find the GCF of 20, 39, 23, 510

Answer: Greatest Common Factor(GCF) of 20, 39, 23, 510 = 1

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

Step 2: Then multiply all the prime factors GCF(20, 39, 23, 510) = 1.