Greatest Common Factor of 55, 69, 90, 13, 10

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

• Greatest Common Factor of 55, 69, 90, 13, 10 by common division method
• Greatest Common Factor of 55, 69, 90, 13, 10 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 55

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

1,5,11,55

Factors of 69

List of positive integer factors of 69 that divides 69 without a remainder.

1,3,23,69

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 13

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

1,13

Factors of 10

List of positive integer factors of 10 that divides 10 without a remainder.

1,2,5,10

Greatest Common Factor

We found the factors 55,69,90,13,10 . The biggest common factor number is the GCF number.
So the greatest common factor 55,69,90,13,10 is 1.

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

• GCF of 91, 52, 28, 93, 65
• GCF of 83, 20, 40, 43, 97
• GCF of 54, 34, 62, 23, 71
• GCF of 88, 16, 77, 60, 65
• GCF of 60, 51, 51, 21, 34

1. What is the GCF of 55, 69, 90, 13, 10?

Answer: GCF of 55, 69, 90, 13, 10 is 1.

2. How to Find the GCF of 55, 69, 90, 13, 10

Answer: Greatest Common Factor(GCF) of 55, 69, 90, 13, 10 = 1

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

Step 2: Then multiply all the prime factors GCF(55, 69, 90, 13, 10) = 1.