Greatest Common Factor of 20, 84, 780

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

• Greatest Common Factor of 20, 84, 780 by common division method
• Greatest Common Factor of 20, 84, 780 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 x 2 = 4

Factors of 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

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 780

List of positive integer factors of 780 that divides 780 without a remainder.

1,2,3,4,5,6,10,12,13,15,20,26,30,39,52,60,65,78,130,156,195,260,390,780

Greatest Common Factor

We found the factors 20,84,780 . The biggest common factor number is the GCF number.
So the greatest common factor 20,84,780 is 4.

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

• GCF of 90, 20, 343
• GCF of 69, 90, 955
• GCF of 54, 28, 190
• GCF of 29, 31, 790
• GCF of 24, 32, 118

1. What is the GCF of 20, 84, 780?

Answer: GCF of 20, 84, 780 is 4.

2. How to Find the GCF of 20, 84, 780

Answer: Greatest Common Factor(GCF) of 20, 84, 780 = 4

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

Step 2: Then multiply all the prime factors GCF(20, 84, 780) = 4.