Greatest Common Factor of 80, 40, 420

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

• Greatest Common Factor of 80, 40, 420 by common division method
• Greatest Common Factor of 80, 40, 420 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 x 5 = 20

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 40

List of positive integer factors of 40 that divides 40 without a remainder.

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

Factors of 420

List of positive integer factors of 420 that divides 420 without a remainder.

1,2,3,4,5,6,7,10,12,14,15,20,21,28,30,35,42,60,70,84,105,140,210,420

Greatest Common Factor

We found the factors 80,40,420 . The biggest common factor number is the GCF number.
So the greatest common factor 80,40,420 is 20.

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

• GCF of 56, 63, 467
• GCF of 49, 32, 748
• GCF of 22, 43, 738
• GCF of 79, 37, 177
• GCF of 14, 86, 468

1. What is the GCF of 80, 40, 420?

Answer: GCF of 80, 40, 420 is 20.

2. How to Find the GCF of 80, 40, 420

Answer: Greatest Common Factor(GCF) of 80, 40, 420 = 20

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

Step 2: Then multiply all the prime factors GCF(80, 40, 420) = 20.