Greatest Common Factor of 78, 70, 67, 57

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

• Greatest Common Factor of 78, 70, 67, 57 by common division method
• Greatest Common Factor of 78, 70, 67, 57 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 70

List of positive integer factors of 70 that divides 70 without a remainder.

1,2,5,7,10,14,35,70

Factors of 67

List of positive integer factors of 67 that divides 67 without a remainder.

1,67

Factors of 57

List of positive integer factors of 57 that divides 57 without a remainder.

1,3,19,57

Greatest Common Factor

We found the factors 78,70,67,57 . The biggest common factor number is the GCF number.
So the greatest common factor 78,70,67,57 is 1.

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

• GCF of 11, 87, 53, 19
• GCF of 43, 32, 68, 84
• GCF of 38, 17, 21, 33
• GCF of 92, 57, 77, 56
• GCF of 91, 91, 76, 72

1. What is the GCF of 78, 70, 67, 57?

Answer: GCF of 78, 70, 67, 57 is 1.

2. How to Find the GCF of 78, 70, 67, 57

Answer: Greatest Common Factor(GCF) of 78, 70, 67, 57 = 1

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

Step 2: Then multiply all the prime factors GCF(78, 70, 67, 57) = 1.