Greatest Common Factor of 820, 221, 40

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

• Greatest Common Factor of 820, 221, 40 by common division method
• Greatest Common Factor of 820, 221, 40 with matching the biggest common factor

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∴ GCF of numbers is 1 because of no common factors present between them.

Factors of 820

List of positive integer factors of 820 that divides 820 without a remainder.

1,2,4,5,10,20,41,82,164,205,410,820

Factors of 221

List of positive integer factors of 221 that divides 221 without a remainder.

1,13,17,221

Factors of 40

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

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

Greatest Common Factor

We found the factors 820,221,40 . The biggest common factor number is the GCF number.
So the greatest common factor 820,221,40 is 1.

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

• GCF of 649, 986, 89
• GCF of 134, 526, 12
• GCF of 607, 731, 54
• GCF of 856, 316, 60
• GCF of 566, 460, 55

1. What is the GCF of 820, 221, 40?

Answer: GCF of 820, 221, 40 is 1.

2. How to Find the GCF of 820, 221, 40

Answer: Greatest Common Factor(GCF) of 820, 221, 40 = 1

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

Step 2: Then multiply all the prime factors GCF(820, 221, 40) = 1.