Greatest Common Factor of 20, 75, 780

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

• Greatest Common Factor of 20, 75, 780 by common division method
• Greatest Common Factor of 20, 75, 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 5 = 5

Factors of 20

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

1,2,4,5,10,20

Factors of 75

List of positive integer factors of 75 that divides 75 without a remainder.

1,3,5,15,25,75

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 20,75,780 . The biggest common factor number is the GCF number.
So the greatest common factor 20,75,780 is 5.

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

• GCF of 45, 56, 364
• GCF of 19, 40, 839
• GCF of 64, 39, 944
• GCF of 18, 57, 601
• GCF of 46, 55, 324

1. What is the GCF of 20, 75, 780?

Answer: GCF of 20, 75, 780 is 5.

2. How to Find the GCF of 20, 75, 780

Answer: Greatest Common Factor(GCF) of 20, 75, 780 = 5

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

Step 2: Then multiply all the prime factors GCF(20, 75, 780) = 5.