Greatest Common Factor of 30, 18, 640

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

• Greatest Common Factor of 30, 18, 640 by common division method
• Greatest Common Factor of 30, 18, 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 2 = 2

Factors of 30

List of positive integer factors of 30 that divides 30 without a remainder.

1,2,3,5,6,10,15,30

Factors of 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

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 30,18,640 . The biggest common factor number is the GCF number.
So the greatest common factor 30,18,640 is 2.

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

• GCF of 52, 84, 511
• GCF of 75, 51, 935
• GCF of 61, 52, 730
• GCF of 47, 35, 748
• GCF of 82, 90, 514

1. What is the GCF of 30, 18, 640?

Answer: GCF of 30, 18, 640 is 2.

2. How to Find the GCF of 30, 18, 640

Answer: Greatest Common Factor(GCF) of 30, 18, 640 = 2

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

Step 2: Then multiply all the prime factors GCF(30, 18, 640) = 2.