Greatest Common Factor of 20, 40, 42, 89, 747

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

• Greatest Common Factor of 20, 40, 42, 89, 747 by common division method
• Greatest Common Factor of 20, 40, 42, 89, 747 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ GCF of numbers is 1 because of no common factors present between them.

Factors of 20

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

1,2,4,5,10,20

Factors of 40

List of positive integer factors of 40 that divides 40 without a remainder.

1,2,4,5,8,10,20,40

Factors of 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Factors of 89

List of positive integer factors of 89 that divides 89 without a remainder.

1,89

Factors of 747

List of positive integer factors of 747 that divides 747 without a remainder.

1,3,9,83,249,747

Greatest Common Factor

We found the factors 20,40,42,89,747 . The biggest common factor number is the GCF number.
So the greatest common factor 20,40,42,89,747 is 1.

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

• GCF of 72, 68, 11, 65, 173
• GCF of 27, 39, 81, 53, 795
• GCF of 94, 82, 94, 65, 687
• GCF of 13, 28, 23, 44, 580
• GCF of 22, 93, 78, 29, 317

1. What is the GCF of 20, 40, 42, 89, 747?

Answer: GCF of 20, 40, 42, 89, 747 is 1.

2. How to Find the GCF of 20, 40, 42, 89, 747

Answer: Greatest Common Factor(GCF) of 20, 40, 42, 89, 747 = 1

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

Step 2: Then multiply all the prime factors GCF(20, 40, 42, 89, 747) = 1.