Greatest Common Factor of 309, 428, 66

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

• Greatest Common Factor of 309, 428, 66 by common division method
• Greatest Common Factor of 309, 428, 66 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 428

List of positive integer factors of 428 that divides 428 without a remainder.

1,2,4,107,214,428

Factors of 66

List of positive integer factors of 66 that divides 66 without a remainder.

1,2,3,6,11,22,33,66

Greatest Common Factor

We found the factors 309,428,66 . The biggest common factor number is the GCF number.
So the greatest common factor 309,428,66 is 1.

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

• GCF of 859, 287, 69
• GCF of 541, 325, 52
• GCF of 593, 155, 47
• GCF of 373, 133, 81
• GCF of 181, 614, 65

1. What is the GCF of 309, 428, 66?

Answer: GCF of 309, 428, 66 is 1.

2. How to Find the GCF of 309, 428, 66

Answer: Greatest Common Factor(GCF) of 309, 428, 66 = 1

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

Step 2: Then multiply all the prime factors GCF(309, 428, 66) = 1.