Greatest Common Factor of 31, 81, 71, 161

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

• Greatest Common Factor of 31, 81, 71, 161 by common division method
• Greatest Common Factor of 31, 81, 71, 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 31

List of positive integer factors of 31 that divides 31 without a remainder.

1,31

Factors of 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

Factors of 71

List of positive integer factors of 71 that divides 71 without a remainder.

1,71

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 31,81,71,161 . The biggest common factor number is the GCF number.
So the greatest common factor 31,81,71,161 is 1.

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

• GCF of 25, 91, 91, 989
• GCF of 71, 67, 42, 118
• GCF of 36, 38, 38, 741
• GCF of 79, 75, 43, 419
• GCF of 16, 20, 20, 428

1. What is the GCF of 31, 81, 71, 161?

Answer: GCF of 31, 81, 71, 161 is 1.

2. How to Find the GCF of 31, 81, 71, 161

Answer: Greatest Common Factor(GCF) of 31, 81, 71, 161 = 1

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

Step 2: Then multiply all the prime factors GCF(31, 81, 71, 161) = 1.