Greatest Common Factor of 405, 155, 640

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

• Greatest Common Factor of 405, 155, 640 by common division method
• Greatest Common Factor of 405, 155, 640 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 405

List of positive integer factors of 405 that divides 405 without a remainder.

1,3,5,9,15,27,45,81,135,405

Factors of 155

List of positive integer factors of 155 that divides 155 without a remainder.

1,5,31,155

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

Greatest Common Factor

We found the factors 405,155,640 . The biggest common factor number is the GCF number.
So the greatest common factor 405,155,640 is 5.

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

• GCF of 278, 551, 180
• GCF of 421, 961, 803
• GCF of 801, 391, 492
• GCF of 667, 925, 165
• GCF of 993, 259, 842

1. What is the GCF of 405, 155, 640?

Answer: GCF of 405, 155, 640 is 5.

2. How to Find the GCF of 405, 155, 640

Answer: Greatest Common Factor(GCF) of 405, 155, 640 = 5

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

Step 2: Then multiply all the prime factors GCF(405, 155, 640) = 5.