Greatest Common Factor of 20, 73, 70, 30, 54

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

• Greatest Common Factor of 20, 73, 70, 30, 54 by common division method
• Greatest Common Factor of 20, 73, 70, 30, 54 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 20

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

1,2,4,5,10,20

Factors of 73

List of positive integer factors of 73 that divides 73 without a remainder.

1,73

Factors of 70

List of positive integer factors of 70 that divides 70 without a remainder.

1,2,5,7,10,14,35,70

Factors of 30

List of positive integer factors of 30 that divides 30 without a remainder.

1,2,3,5,6,10,15,30

Factors of 54

List of positive integer factors of 54 that divides 54 without a remainder.

1,2,3,6,9,18,27,54

Greatest Common Factor

We found the factors 20,73,70,30,54 . The biggest common factor number is the GCF number.
So the greatest common factor 20,73,70,30,54 is 1.

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

• GCF of 48, 34, 21, 42, 57
• GCF of 94, 86, 43, 20, 11
• GCF of 97, 64, 21, 23, 60
• GCF of 26, 17, 43, 77, 31
• GCF of 72, 53, 94, 95, 20

1. What is the GCF of 20, 73, 70, 30, 54?

Answer: GCF of 20, 73, 70, 30, 54 is 1.

2. How to Find the GCF of 20, 73, 70, 30, 54

Answer: Greatest Common Factor(GCF) of 20, 73, 70, 30, 54 = 1

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

Step 2: Then multiply all the prime factors GCF(20, 73, 70, 30, 54) = 1.