Greatest Common Factor of 45, 65, 40, 171

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

• Greatest Common Factor of 45, 65, 40, 171 by common division method
• Greatest Common Factor of 45, 65, 40, 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 45

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

1,3,5,9,15,45

Factors of 65

List of positive integer factors of 65 that divides 65 without a remainder.

1,5,13,65

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 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 45,65,40,171 . The biggest common factor number is the GCF number.
So the greatest common factor 45,65,40,171 is 1.

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

• GCF of 32, 44, 65, 623
• GCF of 31, 48, 31, 243
• GCF of 26, 45, 14, 321
• GCF of 92, 29, 82, 914
• GCF of 78, 68, 62, 182

1. What is the GCF of 45, 65, 40, 171?

Answer: GCF of 45, 65, 40, 171 is 1.

2. How to Find the GCF of 45, 65, 40, 171

Answer: Greatest Common Factor(GCF) of 45, 65, 40, 171 = 1

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

Step 2: Then multiply all the prime factors GCF(45, 65, 40, 171) = 1.