Greatest Common Factor of 78, 18, 53, 12

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

• Greatest Common Factor of 78, 18, 53, 12 by common division method
• Greatest Common Factor of 78, 18, 53, 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 78

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

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

Factors of 18

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

1,2,3,6,9,18

Factors of 53

List of positive integer factors of 53 that divides 53 without a remainder.

1,53

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 78,18,53,12 . The biggest common factor number is the GCF number.
So the greatest common factor 78,18,53,12 is 1.

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

• GCF of 69, 45, 27, 48
• GCF of 80, 76, 59, 17
• GCF of 59, 15, 25, 97
• GCF of 85, 19, 69, 89
• GCF of 67, 82, 61, 13

1. What is the GCF of 78, 18, 53, 12?

Answer: GCF of 78, 18, 53, 12 is 1.

2. How to Find the GCF of 78, 18, 53, 12

Answer: Greatest Common Factor(GCF) of 78, 18, 53, 12 = 1

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

Step 2: Then multiply all the prime factors GCF(78, 18, 53, 12) = 1.