Greatest Common Factor of 18, 68, 27, 25, 105

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

• Greatest Common Factor of 18, 68, 27, 25, 105 by common division method
• Greatest Common Factor of 18, 68, 27, 25, 105 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 68

List of positive integer factors of 68 that divides 68 without a remainder.

1,2,4,17,34,68

Factors of 27

List of positive integer factors of 27 that divides 27 without a remainder.

1,3,9,27

Factors of 25

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

1,5,25

Factors of 105

List of positive integer factors of 105 that divides 105 without a remainder.

1,3,5,7,15,21,35,105

Greatest Common Factor

We found the factors 18,68,27,25,105 . The biggest common factor number is the GCF number.
So the greatest common factor 18,68,27,25,105 is 1.

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

• GCF of 84, 13, 87, 94, 344
• GCF of 37, 57, 82, 20, 519
• GCF of 40, 84, 79, 24, 303
• GCF of 23, 14, 71, 55, 985
• GCF of 62, 38, 72, 73, 819

1. What is the GCF of 18, 68, 27, 25, 105?

Answer: GCF of 18, 68, 27, 25, 105 is 1.

2. How to Find the GCF of 18, 68, 27, 25, 105

Answer: Greatest Common Factor(GCF) of 18, 68, 27, 25, 105 = 1

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

Step 2: Then multiply all the prime factors GCF(18, 68, 27, 25, 105) = 1.