Greatest Common Factor of 393, 645, 620

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

• Greatest Common Factor of 393, 645, 620 by common division method
• Greatest Common Factor of 393, 645, 620 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 393

List of positive integer factors of 393 that divides 393 without a remainder.

1,3,131,393

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 620

List of positive integer factors of 620 that divides 620 without a remainder.

1,2,4,5,10,20,31,62,124,155,310,620

Greatest Common Factor

We found the factors 393,645,620 . The biggest common factor number is the GCF number.
So the greatest common factor 393,645,620 is 1.

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

• GCF of 236, 549, 845
• GCF of 968, 207, 409
• GCF of 466, 712, 292
• GCF of 924, 866, 842
• GCF of 591, 391, 896

1. What is the GCF of 393, 645, 620?

Answer: GCF of 393, 645, 620 is 1.

2. How to Find the GCF of 393, 645, 620

Answer: Greatest Common Factor(GCF) of 393, 645, 620 = 1

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

Step 2: Then multiply all the prime factors GCF(393, 645, 620) = 1.