Greatest Common Factor of 165, 8145, 645

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

• Greatest Common Factor of 165, 8145, 645 by common division method
• Greatest Common Factor of 165, 8145, 645 with matching the biggest common factor

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∴ So the GCF of the given numbers is 3 x 5 = 15

Factors of 165

List of positive integer factors of 165 that divides 165 without a remainder.

1,3,5,11,15,33,55,165

Factors of 8145

List of positive integer factors of 8145 that divides 8145 without a remainder.

1,3,5,9,15,45,181,543,905,1629,2715,8145

Factors of 645

List of positive integer factors of 645 that divides 645 without a remainder.

1,3,5,15,43,129,215,645

Greatest Common Factor

We found the factors 165,8145,645 . The biggest common factor number is the GCF number.
So the greatest common factor 165,8145,645 is 15.

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

• GCF of 656, 6769, 947
• GCF of 257, 7800, 786
• GCF of 619, 3405, 514
• GCF of 225, 3479, 388
• GCF of 202, 3826, 305

1. What is the GCF of 165, 8145, 645?

Answer: GCF of 165, 8145, 645 is 15.

2. How to Find the GCF of 165, 8145, 645

Answer: Greatest Common Factor(GCF) of 165, 8145, 645 = 15

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

Step 2: Then multiply all the prime factors GCF(165, 8145, 645) = 15.