Greatest Common Factor of 20, 90, 31, 46

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

• Greatest Common Factor of 20, 90, 31, 46 by common division method
• Greatest Common Factor of 20, 90, 31, 46 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 20

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

1,2,4,5,10,20

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 31

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

1,31

Factors of 46

List of positive integer factors of 46 that divides 46 without a remainder.

1,2,23,46

Greatest Common Factor

We found the factors 20,90,31,46 . The biggest common factor number is the GCF number.
So the greatest common factor 20,90,31,46 is 1.

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

• GCF of 43, 87, 22, 68
• GCF of 34, 17, 63, 19
• GCF of 66, 92, 15, 45
• GCF of 51, 61, 29, 90
• GCF of 32, 76, 94, 55

1. What is the GCF of 20, 90, 31, 46?

Answer: GCF of 20, 90, 31, 46 is 1.

2. How to Find the GCF of 20, 90, 31, 46

Answer: Greatest Common Factor(GCF) of 20, 90, 31, 46 = 1

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

Step 2: Then multiply all the prime factors GCF(20, 90, 31, 46) = 1.