Greatest Common Factor of 84, 18, 78, 680

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

• Greatest Common Factor of 84, 18, 78, 680 by common division method
• Greatest Common Factor of 84, 18, 78, 680 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ So the GCF of the given numbers is 2 = 2

Factors of 84

List of positive integer factors of 84 that divides 84 without a remainder.

1,2,3,4,6,7,12,14,21,28,42,84

Factors of 18

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

1,2,3,6,9,18

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 680

List of positive integer factors of 680 that divides 680 without a remainder.

1,2,4,5,8,10,17,20,34,40,68,85,136,170,340,680

Greatest Common Factor

We found the factors 84,18,78,680 . The biggest common factor number is the GCF number.
So the greatest common factor 84,18,78,680 is 2.

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

• GCF of 94, 88, 65, 236
• GCF of 15, 66, 20, 183
• GCF of 58, 77, 14, 550
• GCF of 98, 47, 71, 161
• GCF of 85, 10, 67, 754

1. What is the GCF of 84, 18, 78, 680?

Answer: GCF of 84, 18, 78, 680 is 2.

2. How to Find the GCF of 84, 18, 78, 680

Answer: Greatest Common Factor(GCF) of 84, 18, 78, 680 = 2

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

Step 2: Then multiply all the prime factors GCF(84, 18, 78, 680) = 2.