Greatest Common Factor of 84, 20, 420

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

• Greatest Common Factor of 84, 20, 420 by common division method
• Greatest Common Factor of 84, 20, 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 = 4

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 20

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

1,2,4,5,10,20

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 84,20,420 . The biggest common factor number is the GCF number.
So the greatest common factor 84,20,420 is 4.

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

• GCF of 48, 10, 684
• GCF of 34, 34, 142
• GCF of 93, 60, 552
• GCF of 98, 39, 858
• GCF of 35, 73, 643

1. What is the GCF of 84, 20, 420?

Answer: GCF of 84, 20, 420 is 4.

2. How to Find the GCF of 84, 20, 420

Answer: Greatest Common Factor(GCF) of 84, 20, 420 = 4

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

Step 2: Then multiply all the prime factors GCF(84, 20, 420) = 4.