Greatest Common Factor of 40, 18, 12, 800

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

• Greatest Common Factor of 40, 18, 12, 800 by common division method
• Greatest Common Factor of 40, 18, 12, 800 with matching the biggest common factor

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∴ So the GCF of the given numbers is 2 = 2

Factors of 40

List of positive integer factors of 40 that divides 40 without a remainder.

1,2,4,5,8,10,20,40

Factors of 18

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

1,2,3,6,9,18

Factors of 12

List of positive integer factors of 12 that divides 12 without a remainder.

1,2,3,4,6,12

Factors of 800

List of positive integer factors of 800 that divides 800 without a remainder.

1,2,4,5,8,10,16,20,25,32,40,50,80,100,160,200,400,800

Greatest Common Factor

We found the factors 40,18,12,800 . The biggest common factor number is the GCF number.
So the greatest common factor 40,18,12,800 is 2.

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

• GCF of 15, 71, 41, 550
• GCF of 47, 19, 76, 105
• GCF of 30, 29, 56, 205
• GCF of 14, 52, 41, 928
• GCF of 27, 44, 99, 226

1. What is the GCF of 40, 18, 12, 800?

Answer: GCF of 40, 18, 12, 800 is 2.

2. How to Find the GCF of 40, 18, 12, 800

Answer: Greatest Common Factor(GCF) of 40, 18, 12, 800 = 2

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

Step 2: Then multiply all the prime factors GCF(40, 18, 12, 800) = 2.