Greatest Common Factor of 78, 71, 18, 618

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

• Greatest Common Factor of 78, 71, 18, 618 by common division method
• Greatest Common Factor of 78, 71, 18, 618 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 78

List of positive integer factors of 78 that divides 78 without a remainder.

1,2,3,6,13,26,39,78

Factors of 71

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

1,71

Factors of 18

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

1,2,3,6,9,18

Factors of 618

List of positive integer factors of 618 that divides 618 without a remainder.

1,2,3,6,103,206,309,618

Greatest Common Factor

We found the factors 78,71,18,618 . The biggest common factor number is the GCF number.
So the greatest common factor 78,71,18,618 is 1.

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

• GCF of 28, 14, 42, 787
• GCF of 80, 26, 98, 774
• GCF of 43, 90, 68, 956
• GCF of 95, 35, 59, 849
• GCF of 54, 64, 46, 807

1. What is the GCF of 78, 71, 18, 618?

Answer: GCF of 78, 71, 18, 618 is 1.

2. How to Find the GCF of 78, 71, 18, 618

Answer: Greatest Common Factor(GCF) of 78, 71, 18, 618 = 1

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

Step 2: Then multiply all the prime factors GCF(78, 71, 18, 618) = 1.