Greatest Common Factor of 61, 18, 12, 90, 558

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

• Greatest Common Factor of 61, 18, 12, 90, 558 by common division method
• Greatest Common Factor of 61, 18, 12, 90, 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 61

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

1,61

Factors of 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

Factors of 12

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

1,2,3,4,6,12

Factors of 90

List of positive integer factors of 90 that divides 90 without a remainder.

1,2,3,5,6,9,10,15,18,30,45,90

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 61,18,12,90,558 . The biggest common factor number is the GCF number.
So the greatest common factor 61,18,12,90,558 is 1.

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

• GCF of 50, 18, 10, 88, 949
• GCF of 90, 82, 51, 61, 161
• GCF of 63, 76, 25, 91, 884
• GCF of 62, 66, 98, 76, 992
• GCF of 22, 90, 68, 54, 190

1. What is the GCF of 61, 18, 12, 90, 558?

Answer: GCF of 61, 18, 12, 90, 558 is 1.

2. How to Find the GCF of 61, 18, 12, 90, 558

Answer: Greatest Common Factor(GCF) of 61, 18, 12, 90, 558 = 1

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

Step 2: Then multiply all the prime factors GCF(61, 18, 12, 90, 558) = 1.