Greatest Common Factor of 81, 13, 445

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

• Greatest Common Factor of 81, 13, 445 by common division method
• Greatest Common Factor of 81, 13, 445 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 13

List of positive integer factors of 13 that divides 13 without a remainder.

1,13

Factors of 445

List of positive integer factors of 445 that divides 445 without a remainder.

1,5,89,445

Greatest Common Factor

We found the factors 81,13,445 . The biggest common factor number is the GCF number.
So the greatest common factor 81,13,445 is 1.

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

• GCF of 50, 38, 529
• GCF of 79, 64, 108
• GCF of 15, 89, 393
• GCF of 47, 42, 858
• GCF of 95, 64, 406

1. What is the GCF of 81, 13, 445?

Answer: GCF of 81, 13, 445 is 1.

2. How to Find the GCF of 81, 13, 445

Answer: Greatest Common Factor(GCF) of 81, 13, 445 = 1

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

Step 2: Then multiply all the prime factors GCF(81, 13, 445) = 1.