Greatest Common Factor of 80, 138, 245, 485

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

• Greatest Common Factor of 80, 138, 245, 485 by common division method
• Greatest Common Factor of 80, 138, 245, 485 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 138

List of positive integer factors of 138 that divides 138 without a remainder.

1,2,3,6,23,46,69,138

Factors of 245

List of positive integer factors of 245 that divides 245 without a remainder.

1,5,7,35,49,245

Factors of 485

List of positive integer factors of 485 that divides 485 without a remainder.

1,5,97,485

Greatest Common Factor

We found the factors 80,138,245,485 . The biggest common factor number is the GCF number.
So the greatest common factor 80,138,245,485 is 1.

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

• GCF of 90, 697, 703, 797
• GCF of 26, 318, 209, 607
• GCF of 67, 213, 131, 114
• GCF of 23, 458, 759, 639
• GCF of 93, 646, 147, 184

1. What is the GCF of 80, 138, 245, 485?

Answer: GCF of 80, 138, 245, 485 is 1.

2. How to Find the GCF of 80, 138, 245, 485

Answer: Greatest Common Factor(GCF) of 80, 138, 245, 485 = 1

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

Step 2: Then multiply all the prime factors GCF(80, 138, 245, 485) = 1.