Greatest Common Factor of 680, 287, 13

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

• Greatest Common Factor of 680, 287, 13 by common division method
• Greatest Common Factor of 680, 287, 13 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 680

List of positive integer factors of 680 that divides 680 without a remainder.

1,2,4,5,8,10,17,20,34,40,68,85,136,170,340,680

Factors of 287

List of positive integer factors of 287 that divides 287 without a remainder.

1,7,41,287

Factors of 13

List of positive integer factors of 13 that divides 13 without a remainder.

1,13

Greatest Common Factor

We found the factors 680,287,13 . The biggest common factor number is the GCF number.
So the greatest common factor 680,287,13 is 1.

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

• GCF of 127, 891, 19
• GCF of 427, 470, 63
• GCF of 188, 689, 29
• GCF of 119, 334, 34
• GCF of 172, 866, 28

1. What is the GCF of 680, 287, 13?

Answer: GCF of 680, 287, 13 is 1.

2. How to Find the GCF of 680, 287, 13

Answer: Greatest Common Factor(GCF) of 680, 287, 13 = 1

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

Step 2: Then multiply all the prime factors GCF(680, 287, 13) = 1.