Greatest Common Factor of 68, 64, 78, 638

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

• Greatest Common Factor of 68, 64, 78, 638 by common division method
• Greatest Common Factor of 68, 64, 78, 638 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 68

List of positive integer factors of 68 that divides 68 without a remainder.

1,2,4,17,34,68

Factors of 64

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

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

Factors of 78

List of positive integer factors of 78 that divides 78 without a remainder.

1,2,3,6,13,26,39,78

Factors of 638

List of positive integer factors of 638 that divides 638 without a remainder.

1,2,11,22,29,58,319,638

Greatest Common Factor

We found the factors 68,64,78,638 . The biggest common factor number is the GCF number.
So the greatest common factor 68,64,78,638 is 2.

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

• GCF of 96, 34, 16, 640
• GCF of 71, 75, 67, 484
• GCF of 57, 80, 79, 509
• GCF of 81, 56, 64, 825
• GCF of 61, 99, 25, 868

1. What is the GCF of 68, 64, 78, 638?

Answer: GCF of 68, 64, 78, 638 is 2.

2. How to Find the GCF of 68, 64, 78, 638

Answer: Greatest Common Factor(GCF) of 68, 64, 78, 638 = 2

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

Step 2: Then multiply all the prime factors GCF(68, 64, 78, 638) = 2.