Greatest Common Factor of 80, 20, 42, 220

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

• Greatest Common Factor of 80, 20, 42, 220 by common division method
• Greatest Common Factor of 80, 20, 42, 220 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 80

List of positive integer factors of 80 that divides 80 without a remainder.

1,2,4,5,8,10,16,20,40,80

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 220

List of positive integer factors of 220 that divides 220 without a remainder.

1,2,4,5,10,11,20,22,44,55,110,220

Greatest Common Factor

We found the factors 80,20,42,220 . The biggest common factor number is the GCF number.
So the greatest common factor 80,20,42,220 is 2.

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

• GCF of 81, 16, 49, 798
• GCF of 35, 91, 72, 588
• GCF of 54, 63, 12, 770
• GCF of 13, 62, 39, 384
• GCF of 99, 60, 51, 588

1. What is the GCF of 80, 20, 42, 220?

Answer: GCF of 80, 20, 42, 220 is 2.

2. How to Find the GCF of 80, 20, 42, 220

Answer: Greatest Common Factor(GCF) of 80, 20, 42, 220 = 2

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

Step 2: Then multiply all the prime factors GCF(80, 20, 42, 220) = 2.