Greatest Common Factor of 90, 20, 17, 560

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

• Greatest Common Factor of 90, 20, 17, 560 by common division method
• Greatest Common Factor of 90, 20, 17, 560 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 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 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Factors of 17

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

1,17

Factors of 560

List of positive integer factors of 560 that divides 560 without a remainder.

1,2,4,5,7,8,10,14,16,20,28,35,40,56,70,80,112,140,280,560

Greatest Common Factor

We found the factors 90,20,17,560 . The biggest common factor number is the GCF number.
So the greatest common factor 90,20,17,560 is 1.

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

• GCF of 58, 95, 36, 200
• GCF of 22, 59, 81, 403
• GCF of 12, 43, 45, 917
• GCF of 79, 21, 76, 966
• GCF of 71, 63, 74, 885

1. What is the GCF of 90, 20, 17, 560?

Answer: GCF of 90, 20, 17, 560 is 1.

2. How to Find the GCF of 90, 20, 17, 560

Answer: Greatest Common Factor(GCF) of 90, 20, 17, 560 = 1

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

Step 2: Then multiply all the prime factors GCF(90, 20, 17, 560) = 1.