Greatest Common Factor of 645, 567, 15

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

• Greatest Common Factor of 645, 567, 15 by common division method
• Greatest Common Factor of 645, 567, 15 with matching the biggest common factor

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∴ So the GCF of the given numbers is 3 = 3

Factors of 645

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

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

Factors of 567

List of positive integer factors of 567 that divides 567 without a remainder.

1,3,7,9,21,27,63,81,189,567

Factors of 15

List of positive integer factors of 15 that divides 15 without a remainder.

1,3,5,15

Greatest Common Factor

We found the factors 645,567,15 . The biggest common factor number is the GCF number.
So the greatest common factor 645,567,15 is 3.

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

• GCF of 144, 335, 37
• GCF of 887, 897, 88
• GCF of 533, 176, 44
• GCF of 413, 425, 19
• GCF of 277, 544, 84

1. What is the GCF of 645, 567, 15?

Answer: GCF of 645, 567, 15 is 3.

2. How to Find the GCF of 645, 567, 15

Answer: Greatest Common Factor(GCF) of 645, 567, 15 = 3

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

Step 2: Then multiply all the prime factors GCF(645, 567, 15) = 3.