Greatest Common Factor of 28, 84, 40, 64

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

• Greatest Common Factor of 28, 84, 40, 64 by common division method
• Greatest Common Factor of 28, 84, 40, 64 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 28

List of positive integer factors of 28 that divides 28 without a remainder.

1,2,4,7,14,28

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 40

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

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

Factors of 64

List of positive integer factors of 64 that divides 64 without a remainder.

1,2,4,8,16,32,64

Greatest Common Factor

We found the factors 28,84,40,64 . The biggest common factor number is the GCF number.
So the greatest common factor 28,84,40,64 is 4.

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

• GCF of 26, 87, 34, 58
• GCF of 88, 69, 61, 35
• GCF of 47, 96, 32, 62
• GCF of 25, 49, 64, 99
• GCF of 46, 89, 36, 40

1. What is the GCF of 28, 84, 40, 64?

Answer: GCF of 28, 84, 40, 64 is 4.

2. How to Find the GCF of 28, 84, 40, 64

Answer: Greatest Common Factor(GCF) of 28, 84, 40, 64 = 4

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

Step 2: Then multiply all the prime factors GCF(28, 84, 40, 64) = 4.