Greatest Common Factor of 45, 87, 71, 12

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

• Greatest Common Factor of 45, 87, 71, 12 by common division method
• Greatest Common Factor of 45, 87, 71, 12 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 87

List of positive integer factors of 87 that divides 87 without a remainder.

1,3,29,87

Factors of 71

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

1,71

Factors of 12

List of positive integer factors of 12 that divides 12 without a remainder.

1,2,3,4,6,12

Greatest Common Factor

We found the factors 45,87,71,12 . The biggest common factor number is the GCF number.
So the greatest common factor 45,87,71,12 is 1.

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

• GCF of 44, 99, 92, 82
• GCF of 84, 65, 65, 10
• GCF of 65, 96, 33, 44
• GCF of 81, 38, 25, 89
• GCF of 13, 56, 18, 34

1. What is the GCF of 45, 87, 71, 12?

Answer: GCF of 45, 87, 71, 12 is 1.

2. How to Find the GCF of 45, 87, 71, 12

Answer: Greatest Common Factor(GCF) of 45, 87, 71, 12 = 1

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

Step 2: Then multiply all the prime factors GCF(45, 87, 71, 12) = 1.