Greatest Common Factor of 645, 987, 915

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

• Greatest Common Factor of 645, 987, 915 by common division method
• Greatest Common Factor of 645, 987, 915 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 987

List of positive integer factors of 987 that divides 987 without a remainder.

1,3,7,21,47,141,329,987

Factors of 915

List of positive integer factors of 915 that divides 915 without a remainder.

1,3,5,15,61,183,305,915

Greatest Common Factor

We found the factors 645,987,915 . The biggest common factor number is the GCF number.
So the greatest common factor 645,987,915 is 3.

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

• GCF of 368, 563, 968
• GCF of 954, 556, 120
• GCF of 776, 579, 115
• GCF of 740, 688, 934
• GCF of 816, 986, 598

1. What is the GCF of 645, 987, 915?

Answer: GCF of 645, 987, 915 is 3.

2. How to Find the GCF of 645, 987, 915

Answer: Greatest Common Factor(GCF) of 645, 987, 915 = 3

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

Step 2: Then multiply all the prime factors GCF(645, 987, 915) = 3.