Greatest Common Factor of 689, 189, 309

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

• Greatest Common Factor of 689, 189, 309 by common division method
• Greatest Common Factor of 689, 189, 309 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 689

List of positive integer factors of 689 that divides 689 without a remainder.

1,13,53,689

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 309

List of positive integer factors of 309 that divides 309 without a remainder.

1,3,103,309

Greatest Common Factor

We found the factors 689,189,309 . The biggest common factor number is the GCF number.
So the greatest common factor 689,189,309 is 1.

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

• GCF of 447, 630, 934
• GCF of 849, 480, 344
• GCF of 189, 966, 247
• GCF of 276, 878, 299
• GCF of 432, 154, 357

1. What is the GCF of 689, 189, 309?

Answer: GCF of 689, 189, 309 is 1.

2. How to Find the GCF of 689, 189, 309

Answer: Greatest Common Factor(GCF) of 689, 189, 309 = 1

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

Step 2: Then multiply all the prime factors GCF(689, 189, 309) = 1.