Greatest Common Factor of 39, 18, 99, 221

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

• Greatest Common Factor of 39, 18, 99, 221 by common division method
• Greatest Common Factor of 39, 18, 99, 221 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 39

List of positive integer factors of 39 that divides 39 without a remainder.

1,3,13,39

Factors of 18

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

1,2,3,6,9,18

Factors of 99

List of positive integer factors of 99 that divides 99 without a remainder.

1,3,9,11,33,99

Factors of 221

List of positive integer factors of 221 that divides 221 without a remainder.

1,13,17,221

Greatest Common Factor

We found the factors 39,18,99,221 . The biggest common factor number is the GCF number.
So the greatest common factor 39,18,99,221 is 1.

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

• GCF of 72, 13, 77, 961
• GCF of 27, 20, 50, 610
• GCF of 21, 32, 65, 393
• GCF of 32, 27, 21, 527
• GCF of 17, 89, 82, 900

1. What is the GCF of 39, 18, 99, 221?

Answer: GCF of 39, 18, 99, 221 is 1.

2. How to Find the GCF of 39, 18, 99, 221

Answer: Greatest Common Factor(GCF) of 39, 18, 99, 221 = 1

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

Step 2: Then multiply all the prime factors GCF(39, 18, 99, 221) = 1.