Greatest Common Factor of 78, 67, 16, 620

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

• Greatest Common Factor of 78, 67, 16, 620 by common division method
• Greatest Common Factor of 78, 67, 16, 620 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 67

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

1,67

Factors of 16

List of positive integer factors of 16 that divides 16 without a remainder.

1,2,4,8,16

Factors of 620

List of positive integer factors of 620 that divides 620 without a remainder.

1,2,4,5,10,20,31,62,124,155,310,620

Greatest Common Factor

We found the factors 78,67,16,620 . The biggest common factor number is the GCF number.
So the greatest common factor 78,67,16,620 is 1.

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

• GCF of 91, 40, 78, 845
• GCF of 25, 55, 77, 146
• GCF of 54, 51, 77, 555
• GCF of 89, 10, 99, 121
• GCF of 99, 67, 26, 393

1. What is the GCF of 78, 67, 16, 620?

Answer: GCF of 78, 67, 16, 620 is 1.

2. How to Find the GCF of 78, 67, 16, 620

Answer: Greatest Common Factor(GCF) of 78, 67, 16, 620 = 1

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

Step 2: Then multiply all the prime factors GCF(78, 67, 16, 620) = 1.