Greatest Common Factor of 71, 12, 18, 428

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

• Greatest Common Factor of 71, 12, 18, 428 by common division method
• Greatest Common Factor of 71, 12, 18, 428 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 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

Factors of 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

Factors of 428

List of positive integer factors of 428 that divides 428 without a remainder.

1,2,4,107,214,428

Greatest Common Factor

We found the factors 71,12,18,428 . The biggest common factor number is the GCF number.
So the greatest common factor 71,12,18,428 is 1.

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

• GCF of 83, 79, 27, 905
• GCF of 21, 84, 15, 462
• GCF of 24, 89, 80, 496
• GCF of 86, 47, 66, 773
• GCF of 68, 92, 76, 936

1. What is the GCF of 71, 12, 18, 428?

Answer: GCF of 71, 12, 18, 428 is 1.

2. How to Find the GCF of 71, 12, 18, 428

Answer: Greatest Common Factor(GCF) of 71, 12, 18, 428 = 1

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

Step 2: Then multiply all the prime factors GCF(71, 12, 18, 428) = 1.