Greatest Common Factor of 81, 24, 42, 493

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

• Greatest Common Factor of 81, 24, 42, 493 by common division method
• Greatest Common Factor of 81, 24, 42, 493 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 24

List of positive integer factors of 24 that divides 24 without a remainder.

1,2,3,4,6,8,12,24

Factors of 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Factors of 493

List of positive integer factors of 493 that divides 493 without a remainder.

1,17,29,493

Greatest Common Factor

We found the factors 81,24,42,493 . The biggest common factor number is the GCF number.
So the greatest common factor 81,24,42,493 is 1.

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

• GCF of 81, 49, 99, 513
• GCF of 39, 22, 50, 968
• GCF of 25, 65, 36, 705
• GCF of 49, 94, 69, 519
• GCF of 83, 64, 77, 681

1. What is the GCF of 81, 24, 42, 493?

Answer: GCF of 81, 24, 42, 493 is 1.

2. How to Find the GCF of 81, 24, 42, 493

Answer: Greatest Common Factor(GCF) of 81, 24, 42, 493 = 1

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

Step 2: Then multiply all the prime factors GCF(81, 24, 42, 493) = 1.