Greatest Common Factor of 18, 45, 56, 159

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

• Greatest Common Factor of 18, 45, 56, 159 by common division method
• Greatest Common Factor of 18, 45, 56, 159 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 45

List of positive integer factors of 45 that divides 45 without a remainder.

1,3,5,9,15,45

Factors of 56

List of positive integer factors of 56 that divides 56 without a remainder.

1,2,4,7,8,14,28,56

Factors of 159

List of positive integer factors of 159 that divides 159 without a remainder.

1,3,53,159

Greatest Common Factor

We found the factors 18,45,56,159 . The biggest common factor number is the GCF number.
So the greatest common factor 18,45,56,159 is 1.

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

• GCF of 21, 76, 96, 707
• GCF of 34, 40, 56, 613
• GCF of 62, 52, 25, 366
• GCF of 32, 78, 24, 643
• GCF of 24, 96, 11, 119

1. What is the GCF of 18, 45, 56, 159?

Answer: GCF of 18, 45, 56, 159 is 1.

2. How to Find the GCF of 18, 45, 56, 159

Answer: Greatest Common Factor(GCF) of 18, 45, 56, 159 = 1

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

Step 2: Then multiply all the prime factors GCF(18, 45, 56, 159) = 1.