Greatest Common Factor of 47, 13, 78, 66, 34

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

• Greatest Common Factor of 47, 13, 78, 66, 34 by common division method
• Greatest Common Factor of 47, 13, 78, 66, 34 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 47

List of positive integer factors of 47 that divides 47 without a remainder.

1,47

Factors of 13

List of positive integer factors of 13 that divides 13 without a remainder.

1,13

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 66

List of positive integer factors of 66 that divides 66 without a remainder.

1,2,3,6,11,22,33,66

Factors of 34

List of positive integer factors of 34 that divides 34 without a remainder.

1,2,17,34

Greatest Common Factor

We found the factors 47,13,78,66,34 . The biggest common factor number is the GCF number.
So the greatest common factor 47,13,78,66,34 is 1.

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

• GCF of 84, 78, 69, 82, 56
• GCF of 14, 87, 70, 77, 56
• GCF of 29, 58, 21, 40, 32
• GCF of 62, 94, 38, 58, 67
• GCF of 72, 22, 13, 31, 75

1. What is the GCF of 47, 13, 78, 66, 34?

Answer: GCF of 47, 13, 78, 66, 34 is 1.

2. How to Find the GCF of 47, 13, 78, 66, 34

Answer: Greatest Common Factor(GCF) of 47, 13, 78, 66, 34 = 1

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

Step 2: Then multiply all the prime factors GCF(47, 13, 78, 66, 34) = 1.