Greatest Common Factor of 680, 189, 55

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

• Greatest Common Factor of 680, 189, 55 by common division method
• Greatest Common Factor of 680, 189, 55 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 189

List of positive integer factors of 189 that divides 189 without a remainder.

1,3,7,9,21,27,63,189

Factors of 55

List of positive integer factors of 55 that divides 55 without a remainder.

1,5,11,55

Greatest Common Factor

We found the factors 680,189,55 . The biggest common factor number is the GCF number.
So the greatest common factor 680,189,55 is 1.

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

• GCF of 901, 217, 67
• GCF of 874, 879, 32
• GCF of 522, 973, 27
• GCF of 564, 184, 78
• GCF of 319, 468, 93

1. What is the GCF of 680, 189, 55?

Answer: GCF of 680, 189, 55 is 1.

2. How to Find the GCF of 680, 189, 55

Answer: Greatest Common Factor(GCF) of 680, 189, 55 = 1

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

Step 2: Then multiply all the prime factors GCF(680, 189, 55) = 1.