Greatest Common Factor of 90, 20, 31, 43

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

• Greatest Common Factor of 90, 20, 31, 43 by common division method
• Greatest Common Factor of 90, 20, 31, 43 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 31

List of positive integer factors of 31 that divides 31 without a remainder.

1,31

Factors of 43

List of positive integer factors of 43 that divides 43 without a remainder.

1,43

Greatest Common Factor

We found the factors 90,20,31,43 . The biggest common factor number is the GCF number.
So the greatest common factor 90,20,31,43 is 1.

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

• GCF of 26, 70, 54, 47
• GCF of 46, 80, 26, 64
• GCF of 48, 22, 96, 34
• GCF of 90, 93, 36, 68
• GCF of 66, 50, 95, 94

1. What is the GCF of 90, 20, 31, 43?

Answer: GCF of 90, 20, 31, 43 is 1.

2. How to Find the GCF of 90, 20, 31, 43

Answer: Greatest Common Factor(GCF) of 90, 20, 31, 43 = 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, 31, 43) = 1.