Greatest Common Factor of 79, 90, 18, 109

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

• Greatest Common Factor of 79, 90, 18, 109 by common division method
• Greatest Common Factor of 79, 90, 18, 109 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 79

List of positive integer factors of 79 that divides 79 without a remainder.

1,79

Factors of 90

List of positive integer factors of 90 that divides 90 without a remainder.

1,2,3,5,6,9,10,15,18,30,45,90

Factors of 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

Factors of 109

List of positive integer factors of 109 that divides 109 without a remainder.

1,109

Greatest Common Factor

We found the factors 79,90,18,109 . The biggest common factor number is the GCF number.
So the greatest common factor 79,90,18,109 is 1.

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

• GCF of 31, 30, 34, 519
• GCF of 49, 78, 13, 344
• GCF of 55, 26, 99, 474
• GCF of 58, 99, 59, 131
• GCF of 42, 87, 70, 550

1. What is the GCF of 79, 90, 18, 109?

Answer: GCF of 79, 90, 18, 109 is 1.

2. How to Find the GCF of 79, 90, 18, 109

Answer: Greatest Common Factor(GCF) of 79, 90, 18, 109 = 1

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

Step 2: Then multiply all the prime factors GCF(79, 90, 18, 109) = 1.