Greatest Common Factor of 18, 63, 20, 786

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

• Greatest Common Factor of 18, 63, 20, 786 by common division method
• Greatest Common Factor of 18, 63, 20, 786 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 63

List of positive integer factors of 63 that divides 63 without a remainder.

1,3,7,9,21,63

Factors of 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Factors of 786

List of positive integer factors of 786 that divides 786 without a remainder.

1,2,3,6,131,262,393,786

Greatest Common Factor

We found the factors 18,63,20,786 . The biggest common factor number is the GCF number.
So the greatest common factor 18,63,20,786 is 1.

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

• GCF of 92, 66, 29, 941
• GCF of 70, 50, 27, 413
• GCF of 59, 14, 70, 477
• GCF of 23, 52, 23, 761
• GCF of 13, 20, 60, 635

1. What is the GCF of 18, 63, 20, 786?

Answer: GCF of 18, 63, 20, 786 is 1.

2. How to Find the GCF of 18, 63, 20, 786

Answer: Greatest Common Factor(GCF) of 18, 63, 20, 786 = 1

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

Step 2: Then multiply all the prime factors GCF(18, 63, 20, 786) = 1.