Greatest Common Factor of 81, 45, 29, 397

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

• Greatest Common Factor of 81, 45, 29, 397 by common division method
• Greatest Common Factor of 81, 45, 29, 397 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 45

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

1,3,5,9,15,45

Factors of 29

List of positive integer factors of 29 that divides 29 without a remainder.

1,29

Factors of 397

List of positive integer factors of 397 that divides 397 without a remainder.

1,397

Greatest Common Factor

We found the factors 81,45,29,397 . The biggest common factor number is the GCF number.
So the greatest common factor 81,45,29,397 is 1.

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

• GCF of 45, 62, 55, 298
• GCF of 66, 49, 95, 619
• GCF of 71, 70, 95, 359
• GCF of 41, 62, 23, 365
• GCF of 29, 21, 58, 903

1. What is the GCF of 81, 45, 29, 397?

Answer: GCF of 81, 45, 29, 397 is 1.

2. How to Find the GCF of 81, 45, 29, 397

Answer: Greatest Common Factor(GCF) of 81, 45, 29, 397 = 1

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

Step 2: Then multiply all the prime factors GCF(81, 45, 29, 397) = 1.