Greatest Common Factor of 42, 82, 80, 161

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

• Greatest Common Factor of 42, 82, 80, 161 by common division method
• Greatest Common Factor of 42, 82, 80, 161 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 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Factors of 82

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

1,2,41,82

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 161

List of positive integer factors of 161 that divides 161 without a remainder.

1,7,23,161

Greatest Common Factor

We found the factors 42,82,80,161 . The biggest common factor number is the GCF number.
So the greatest common factor 42,82,80,161 is 1.

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

• GCF of 96, 27, 67, 441
• GCF of 74, 10, 16, 955
• GCF of 35, 21, 24, 753
• GCF of 70, 78, 56, 989
• GCF of 99, 90, 52, 281

1. What is the GCF of 42, 82, 80, 161?

Answer: GCF of 42, 82, 80, 161 is 1.

2. How to Find the GCF of 42, 82, 80, 161

Answer: Greatest Common Factor(GCF) of 42, 82, 80, 161 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 82, 80, 161) = 1.