Greatest Common Factor of 13, 90, 32, 561

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

• Greatest Common Factor of 13, 90, 32, 561 by common division method
• Greatest Common Factor of 13, 90, 32, 561 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 13

List of positive integer factors of 13 that divides 13 without a remainder.

1,13

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 32

List of positive integer factors of 32 that divides 32 without a remainder.

1,2,4,8,16,32

Factors of 561

List of positive integer factors of 561 that divides 561 without a remainder.

1,3,11,17,33,51,187,561

Greatest Common Factor

We found the factors 13,90,32,561 . The biggest common factor number is the GCF number.
So the greatest common factor 13,90,32,561 is 1.

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

• GCF of 84, 51, 20, 330
• GCF of 74, 60, 62, 806
• GCF of 75, 61, 29, 293
• GCF of 99, 47, 67, 637
• GCF of 33, 29, 95, 155

1. What is the GCF of 13, 90, 32, 561?

Answer: GCF of 13, 90, 32, 561 is 1.

2. How to Find the GCF of 13, 90, 32, 561

Answer: Greatest Common Factor(GCF) of 13, 90, 32, 561 = 1

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

Step 2: Then multiply all the prime factors GCF(13, 90, 32, 561) = 1.