Greatest Common Factor of 61, 30, 28, 54

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

• Greatest Common Factor of 61, 30, 28, 54 by common division method
• Greatest Common Factor of 61, 30, 28, 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 61

List of positive integer factors of 61 that divides 61 without a remainder.

1,61

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 28

List of positive integer factors of 28 that divides 28 without a remainder.

1,2,4,7,14,28

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 61,30,28,54 . The biggest common factor number is the GCF number.
So the greatest common factor 61,30,28,54 is 1.

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

• GCF of 37, 38, 82, 92
• GCF of 44, 97, 95, 82
• GCF of 99, 90, 81, 61
• GCF of 99, 67, 97, 18
• GCF of 39, 38, 94, 11

1. What is the GCF of 61, 30, 28, 54?

Answer: GCF of 61, 30, 28, 54 is 1.

2. How to Find the GCF of 61, 30, 28, 54

Answer: Greatest Common Factor(GCF) of 61, 30, 28, 54 = 1

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

Step 2: Then multiply all the prime factors GCF(61, 30, 28, 54) = 1.