Greatest Common Factor of 45, 80, 61, 82

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

• Greatest Common Factor of 45, 80, 61, 82 by common division method
• Greatest Common Factor of 45, 80, 61, 82 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 45

List of positive integer factors of 45 that divides 45 without a remainder.

1,3,5,9,15,45

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 61

List of positive integer factors of 61 that divides 61 without a remainder.

1,61

Factors of 82

List of positive integer factors of 82 that divides 82 without a remainder.

1,2,41,82

Greatest Common Factor

We found the factors 45,80,61,82 . The biggest common factor number is the GCF number.
So the greatest common factor 45,80,61,82 is 1.

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

• GCF of 27, 95, 49, 24
• GCF of 12, 14, 11, 26
• GCF of 37, 64, 75, 85
• GCF of 60, 39, 17, 70
• GCF of 55, 79, 19, 64

1. What is the GCF of 45, 80, 61, 82?

Answer: GCF of 45, 80, 61, 82 is 1.

2. How to Find the GCF of 45, 80, 61, 82

Answer: Greatest Common Factor(GCF) of 45, 80, 61, 82 = 1

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

Step 2: Then multiply all the prime factors GCF(45, 80, 61, 82) = 1.