Greatest Common Factor of 80, 12, 65, 123

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

• Greatest Common Factor of 80, 12, 65, 123 by common division method
• Greatest Common Factor of 80, 12, 65, 123 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 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 12

List of positive integer factors of 12 that divides 12 without a remainder.

1,2,3,4,6,12

Factors of 65

List of positive integer factors of 65 that divides 65 without a remainder.

1,5,13,65

Factors of 123

List of positive integer factors of 123 that divides 123 without a remainder.

1,3,41,123

Greatest Common Factor

We found the factors 80,12,65,123 . The biggest common factor number is the GCF number.
So the greatest common factor 80,12,65,123 is 1.

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

• GCF of 72, 10, 72, 180
• GCF of 90, 35, 68, 361
• GCF of 65, 39, 17, 144
• GCF of 85, 23, 30, 969
• GCF of 98, 74, 10, 668

1. What is the GCF of 80, 12, 65, 123?

Answer: GCF of 80, 12, 65, 123 is 1.

2. How to Find the GCF of 80, 12, 65, 123

Answer: Greatest Common Factor(GCF) of 80, 12, 65, 123 = 1

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

Step 2: Then multiply all the prime factors GCF(80, 12, 65, 123) = 1.