Greatest Common Factor of 18, 11, 25, 389

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

• Greatest Common Factor of 18, 11, 25, 389 by common division method
• Greatest Common Factor of 18, 11, 25, 389 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 18

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

1,2,3,6,9,18

Factors of 11

List of positive integer factors of 11 that divides 11 without a remainder.

1,11

Factors of 25

List of positive integer factors of 25 that divides 25 without a remainder.

1,5,25

Factors of 389

List of positive integer factors of 389 that divides 389 without a remainder.

1,389

Greatest Common Factor

We found the factors 18,11,25,389 . The biggest common factor number is the GCF number.
So the greatest common factor 18,11,25,389 is 1.

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

• GCF of 22, 89, 44, 179
• GCF of 61, 84, 68, 735
• GCF of 21, 29, 68, 532
• GCF of 84, 77, 86, 843
• GCF of 62, 25, 30, 561

1. What is the GCF of 18, 11, 25, 389?

Answer: GCF of 18, 11, 25, 389 is 1.

2. How to Find the GCF of 18, 11, 25, 389

Answer: Greatest Common Factor(GCF) of 18, 11, 25, 389 = 1

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

Step 2: Then multiply all the prime factors GCF(18, 11, 25, 389) = 1.