Greatest Common Factor of 40, 31, 85, 171

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

• Greatest Common Factor of 40, 31, 85, 171 by common division method
• Greatest Common Factor of 40, 31, 85, 171 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 40

List of positive integer factors of 40 that divides 40 without a remainder.

1,2,4,5,8,10,20,40

Factors of 31

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

1,31

Factors of 85

List of positive integer factors of 85 that divides 85 without a remainder.

1,5,17,85

Factors of 171

List of positive integer factors of 171 that divides 171 without a remainder.

1,3,9,19,57,171

Greatest Common Factor

We found the factors 40,31,85,171 . The biggest common factor number is the GCF number.
So the greatest common factor 40,31,85,171 is 1.

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

• GCF of 79, 75, 40, 201
• GCF of 98, 96, 37, 929
• GCF of 74, 19, 63, 286
• GCF of 83, 42, 73, 721
• GCF of 22, 73, 19, 165

1. What is the GCF of 40, 31, 85, 171?

Answer: GCF of 40, 31, 85, 171 is 1.

2. How to Find the GCF of 40, 31, 85, 171

Answer: Greatest Common Factor(GCF) of 40, 31, 85, 171 = 1

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

Step 2: Then multiply all the prime factors GCF(40, 31, 85, 171) = 1.