Greatest Common Factor of 640, 345, 80

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

• Greatest Common Factor of 640, 345, 80 by common division method
• Greatest Common Factor of 640, 345, 80 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ So the GCF of the given numbers is 5 = 5

Factors of 640

List of positive integer factors of 640 that divides 640 without a remainder.

1,2,4,5,8,10,16,20,32,40,64,80,128,160,320,640

Factors of 345

List of positive integer factors of 345 that divides 345 without a remainder.

1,3,5,15,23,69,115,345

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

Greatest Common Factor

We found the factors 640,345,80 . The biggest common factor number is the GCF number.
So the greatest common factor 640,345,80 is 5.

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

• GCF of 591, 932, 88
• GCF of 745, 993, 85
• GCF of 428, 697, 59
• GCF of 653, 779, 11
• GCF of 202, 853, 51

1. What is the GCF of 640, 345, 80?

Answer: GCF of 640, 345, 80 is 5.

2. How to Find the GCF of 640, 345, 80

Answer: Greatest Common Factor(GCF) of 640, 345, 80 = 5

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

Step 2: Then multiply all the prime factors GCF(640, 345, 80) = 5.