Greatest Common Factor of 685, 345, 172

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

• Greatest Common Factor of 685, 345, 172 by common division method
• Greatest Common Factor of 685, 345, 172 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 685

List of positive integer factors of 685 that divides 685 without a remainder.

1,5,137,685

Factors of 345

List of positive integer factors of 345 that divides 345 without a remainder.

1,3,5,15,23,69,115,345

Factors of 172

List of positive integer factors of 172 that divides 172 without a remainder.

1,2,4,43,86,172

Greatest Common Factor

We found the factors 685,345,172 . The biggest common factor number is the GCF number.
So the greatest common factor 685,345,172 is 1.

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

• GCF of 204, 362, 309
• GCF of 137, 950, 408
• GCF of 658, 985, 968
• GCF of 862, 777, 665
• GCF of 810, 401, 649

1. What is the GCF of 685, 345, 172?

Answer: GCF of 685, 345, 172 is 1.

2. How to Find the GCF of 685, 345, 172

Answer: Greatest Common Factor(GCF) of 685, 345, 172 = 1

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

Step 2: Then multiply all the prime factors GCF(685, 345, 172) = 1.