Greatest Common Factor of 80, 90, 70, 644

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

• Greatest Common Factor of 80, 90, 70, 644 by common division method
• Greatest Common Factor of 80, 90, 70, 644 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 90

List of positive integer factors of 90 that divides 90 without a remainder.

1,2,3,5,6,9,10,15,18,30,45,90

Factors of 70

List of positive integer factors of 70 that divides 70 without a remainder.

1,2,5,7,10,14,35,70

Factors of 644

List of positive integer factors of 644 that divides 644 without a remainder.

1,2,4,7,14,23,28,46,92,161,322,644

Greatest Common Factor

We found the factors 80,90,70,644 . The biggest common factor number is the GCF number.
So the greatest common factor 80,90,70,644 is 2.

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

• GCF of 60, 10, 90, 480
• GCF of 23, 88, 95, 734
• GCF of 79, 66, 45, 614
• GCF of 53, 26, 88, 785
• GCF of 74, 65, 84, 895

1. What is the GCF of 80, 90, 70, 644?

Answer: GCF of 80, 90, 70, 644 is 2.

2. How to Find the GCF of 80, 90, 70, 644

Answer: Greatest Common Factor(GCF) of 80, 90, 70, 644 = 2

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

Step 2: Then multiply all the prime factors GCF(80, 90, 70, 644) = 2.