Greatest Common Factor of 9, 51, 90, 17

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

• Greatest Common Factor of 9, 51, 90, 17 by common division method
• Greatest Common Factor of 9, 51, 90, 17 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 9

List of positive integer factors of 9 that divides 9 without a remainder.

1,3,9

Factors of 51

List of positive integer factors of 51 that divides 51 without a remainder.

1,3,17,51

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 17

List of positive integer factors of 17 that divides 17 without a remainder.

1,17

Greatest Common Factor

We found the factors 9,51,90,17 . The biggest common factor number is the GCF number.
So the greatest common factor 9,51,90,17 is 1.

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

• GCF of 2, 69, 14, 43
• GCF of 7, 25, 25, 43
• GCF of 2, 30, 90, 33
• GCF of 5, 22, 83, 97
• GCF of 7, 84, 63, 58

1. What is the GCF of 9, 51, 90, 17?

Answer: GCF of 9, 51, 90, 17 is 1.

2. How to Find the GCF of 9, 51, 90, 17

Answer: Greatest Common Factor(GCF) of 9, 51, 90, 17 = 1

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

Step 2: Then multiply all the prime factors GCF(9, 51, 90, 17) = 1.