Greatest Common Factor of 55, 72, 34, 820

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

• Greatest Common Factor of 55, 72, 34, 820 by common division method
• Greatest Common Factor of 55, 72, 34, 820 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 55

List of positive integer factors of 55 that divides 55 without a remainder.

1,5,11,55

Factors of 72

List of positive integer factors of 72 that divides 72 without a remainder.

1,2,3,4,6,8,9,12,18,24,36,72

Factors of 34

List of positive integer factors of 34 that divides 34 without a remainder.

1,2,17,34

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

Greatest Common Factor

We found the factors 55,72,34,820 . The biggest common factor number is the GCF number.
So the greatest common factor 55,72,34,820 is 1.

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

• GCF of 33, 26, 71, 567
• GCF of 52, 35, 51, 523
• GCF of 62, 10, 22, 242
• GCF of 76, 44, 94, 206
• GCF of 74, 47, 55, 356

1. What is the GCF of 55, 72, 34, 820?

Answer: GCF of 55, 72, 34, 820 is 1.

2. How to Find the GCF of 55, 72, 34, 820

Answer: Greatest Common Factor(GCF) of 55, 72, 34, 820 = 1

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

Step 2: Then multiply all the prime factors GCF(55, 72, 34, 820) = 1.