Greatest Common Factor of 72, 84, 80, 309

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

• Greatest Common Factor of 72, 84, 80, 309 by common division method
• Greatest Common Factor of 72, 84, 80, 309 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 72

List of positive integer factors of 72 that divides 72 without a remainder.

1,2,3,4,6,8,9,12,18,24,36,72

Factors of 84

List of positive integer factors of 84 that divides 84 without a remainder.

1,2,3,4,6,7,12,14,21,28,42,84

Factors of 80

List of positive integer factors of 80 that divides 80 without a remainder.

1,2,4,5,8,10,16,20,40,80

Factors of 309

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

1,3,103,309

Greatest Common Factor

We found the factors 72,84,80,309 . The biggest common factor number is the GCF number.
So the greatest common factor 72,84,80,309 is 1.

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

• GCF of 67, 82, 44, 987
• GCF of 20, 55, 61, 661
• GCF of 18, 21, 59, 347
• GCF of 60, 56, 42, 612
• GCF of 27, 12, 77, 465

1. What is the GCF of 72, 84, 80, 309?

Answer: GCF of 72, 84, 80, 309 is 1.

2. How to Find the GCF of 72, 84, 80, 309

Answer: Greatest Common Factor(GCF) of 72, 84, 80, 309 = 1

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

Step 2: Then multiply all the prime factors GCF(72, 84, 80, 309) = 1.