Greatest Common Factor of 30, 55, 12, 558

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

• Greatest Common Factor of 30, 55, 12, 558 by common division method
• Greatest Common Factor of 30, 55, 12, 558 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 30

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

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

Factors of 55

List of positive integer factors of 55 that divides 55 without a remainder.

1,5,11,55

Factors of 12

List of positive integer factors of 12 that divides 12 without a remainder.

1,2,3,4,6,12

Factors of 558

List of positive integer factors of 558 that divides 558 without a remainder.

1,2,3,6,9,18,31,62,93,186,279,558

Greatest Common Factor

We found the factors 30,55,12,558 . The biggest common factor number is the GCF number.
So the greatest common factor 30,55,12,558 is 1.

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

• GCF of 44, 78, 66, 456
• GCF of 51, 41, 20, 142
• GCF of 48, 62, 39, 847
• GCF of 29, 51, 92, 229
• GCF of 36, 54, 96, 994

1. What is the GCF of 30, 55, 12, 558?

Answer: GCF of 30, 55, 12, 558 is 1.

2. How to Find the GCF of 30, 55, 12, 558

Answer: Greatest Common Factor(GCF) of 30, 55, 12, 558 = 1

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

Step 2: Then multiply all the prime factors GCF(30, 55, 12, 558) = 1.