Greatest Common Factor of 20, 42, 180, 180

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

• Greatest Common Factor of 20, 42, 180, 180 by common division method
• Greatest Common Factor of 20, 42, 180, 180 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 20

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

1,2,4,5,10,20

Factors of 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Factors of 180

List of positive integer factors of 180 that divides 180 without a remainder.

1,2,3,4,5,6,9,10,12,15,18,20,30,36,45,60,90,180

Factors of 180

List of positive integer factors of 180 that divides 180 without a remainder.

1,2,3,4,5,6,9,10,12,15,18,20,30,36,45,60,90,180

Greatest Common Factor

We found the factors 20,42,180,180 . The biggest common factor number is the GCF number.
So the greatest common factor 20,42,180,180 is 2.

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

• GCF of 48, 16, 356, 110
• GCF of 43, 51, 287, 506
• GCF of 55, 33, 130, 248
• GCF of 34, 21, 403, 676
• GCF of 18, 38, 535, 772

1. What is the GCF of 20, 42, 180, 180?

Answer: GCF of 20, 42, 180, 180 is 2.

2. How to Find the GCF of 20, 42, 180, 180

Answer: Greatest Common Factor(GCF) of 20, 42, 180, 180 = 2

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

Step 2: Then multiply all the prime factors GCF(20, 42, 180, 180) = 2.