Greatest Common Factor of 309, 438, 320, 135

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

• Greatest Common Factor of 309, 438, 320, 135 by common division method
• Greatest Common Factor of 309, 438, 320, 135 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 309

List of positive integer factors of 309 that divides 309 without a remainder.

1,3,103,309

Factors of 438

List of positive integer factors of 438 that divides 438 without a remainder.

1,2,3,6,73,146,219,438

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 135

List of positive integer factors of 135 that divides 135 without a remainder.

1,3,5,9,15,27,45,135

Greatest Common Factor

We found the factors 309,438,320,135 . The biggest common factor number is the GCF number.
So the greatest common factor 309,438,320,135 is 1.

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

• GCF of 387, 429, 583, 673
• GCF of 589, 944, 334, 300
• GCF of 520, 480, 673, 937
• GCF of 709, 733, 409, 347
• GCF of 452, 931, 531, 404

1. What is the GCF of 309, 438, 320, 135?

Answer: GCF of 309, 438, 320, 135 is 1.

2. How to Find the GCF of 309, 438, 320, 135

Answer: Greatest Common Factor(GCF) of 309, 438, 320, 135 = 1

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

Step 2: Then multiply all the prime factors GCF(309, 438, 320, 135) = 1.