Greatest Common Factor of 81, 50, 45, 189

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

• Greatest Common Factor of 81, 50, 45, 189 by common division method
• Greatest Common Factor of 81, 50, 45, 189 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 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

Factors of 50

List of positive integer factors of 50 that divides 50 without a remainder.

1,2,5,10,25,50

Factors of 45

List of positive integer factors of 45 that divides 45 without a remainder.

1,3,5,9,15,45

Factors of 189

List of positive integer factors of 189 that divides 189 without a remainder.

1,3,7,9,21,27,63,189

Greatest Common Factor

We found the factors 81,50,45,189 . The biggest common factor number is the GCF number.
So the greatest common factor 81,50,45,189 is 1.

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

• GCF of 78, 78, 89, 777
• GCF of 79, 28, 20, 437
• GCF of 44, 26, 50, 770
• GCF of 37, 31, 74, 694
• GCF of 36, 45, 29, 950

1. What is the GCF of 81, 50, 45, 189?

Answer: GCF of 81, 50, 45, 189 is 1.

2. How to Find the GCF of 81, 50, 45, 189

Answer: Greatest Common Factor(GCF) of 81, 50, 45, 189 = 1

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

Step 2: Then multiply all the prime factors GCF(81, 50, 45, 189) = 1.