Greatest Common Factor of 645, 320, 39

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

• Greatest Common Factor of 645, 320, 39 by common division method
• Greatest Common Factor of 645, 320, 39 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 645

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

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

Factors of 320

List of positive integer factors of 320 that divides 320 without a remainder.

1,2,4,5,8,10,16,20,32,40,64,80,160,320

Factors of 39

List of positive integer factors of 39 that divides 39 without a remainder.

1,3,13,39

Greatest Common Factor

We found the factors 645,320,39 . The biggest common factor number is the GCF number.
So the greatest common factor 645,320,39 is 1.

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

• GCF of 573, 909, 52
• GCF of 733, 943, 43
• GCF of 741, 796, 26
• GCF of 281, 773, 95
• GCF of 228, 674, 37

1. What is the GCF of 645, 320, 39?

Answer: GCF of 645, 320, 39 is 1.

2. How to Find the GCF of 645, 320, 39

Answer: Greatest Common Factor(GCF) of 645, 320, 39 = 1

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

Step 2: Then multiply all the prime factors GCF(645, 320, 39) = 1.