Greatest Common Factor of 71, 65, 81, 990

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

• Greatest Common Factor of 71, 65, 81, 990 by common division method
• Greatest Common Factor of 71, 65, 81, 990 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 71

List of positive integer factors of 71 that divides 71 without a remainder.

1,71

Factors of 65

List of positive integer factors of 65 that divides 65 without a remainder.

1,5,13,65

Factors of 81

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

1,3,9,27,81

Factors of 990

List of positive integer factors of 990 that divides 990 without a remainder.

1,2,3,5,6,9,10,11,15,18,22,30,33,45,55,66,90,99,110,165,198,330,495,990

Greatest Common Factor

We found the factors 71,65,81,990 . The biggest common factor number is the GCF number.
So the greatest common factor 71,65,81,990 is 1.

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

• GCF of 48, 44, 92, 599
• GCF of 26, 50, 62, 609
• GCF of 53, 50, 90, 521
• GCF of 90, 62, 88, 459
• GCF of 20, 65, 11, 784

1. What is the GCF of 71, 65, 81, 990?

Answer: GCF of 71, 65, 81, 990 is 1.

2. How to Find the GCF of 71, 65, 81, 990

Answer: Greatest Common Factor(GCF) of 71, 65, 81, 990 = 1

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

Step 2: Then multiply all the prime factors GCF(71, 65, 81, 990) = 1.