Greatest Common Factor of 81, 37, 13, 19

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

• Greatest Common Factor of 81, 37, 13, 19 by common division method
• Greatest Common Factor of 81, 37, 13, 19 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 37

List of positive integer factors of 37 that divides 37 without a remainder.

1,37

Factors of 13

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

1,13

Factors of 19

List of positive integer factors of 19 that divides 19 without a remainder.

1,19

Greatest Common Factor

We found the factors 81,37,13,19 . The biggest common factor number is the GCF number.
So the greatest common factor 81,37,13,19 is 1.

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

• GCF of 91, 61, 67, 31
• GCF of 41, 21, 38, 19
• GCF of 57, 67, 57, 37
• GCF of 79, 56, 18, 79
• GCF of 92, 92, 87, 48

1. What is the GCF of 81, 37, 13, 19?

Answer: GCF of 81, 37, 13, 19 is 1.

2. How to Find the GCF of 81, 37, 13, 19

Answer: Greatest Common Factor(GCF) of 81, 37, 13, 19 = 1

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

Step 2: Then multiply all the prime factors GCF(81, 37, 13, 19) = 1.