Greatest Common Factor of 20, 46, 47, 88, 90

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

• Greatest Common Factor of 20, 46, 47, 88, 90 by common division method
• Greatest Common Factor of 20, 46, 47, 88, 90 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 46

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

1,2,23,46

Factors of 47

List of positive integer factors of 47 that divides 47 without a remainder.

1,47

Factors of 88

List of positive integer factors of 88 that divides 88 without a remainder.

1,2,4,8,11,22,44,88

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

Greatest Common Factor

We found the factors 20,46,47,88,90 . The biggest common factor number is the GCF number.
So the greatest common factor 20,46,47,88,90 is 1.

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

• GCF of 81, 77, 19, 81, 58
• GCF of 51, 97, 56, 54, 87
• GCF of 68, 96, 35, 72, 76
• GCF of 10, 65, 44, 73, 26
• GCF of 34, 45, 85, 22, 18

1. What is the GCF of 20, 46, 47, 88, 90?

Answer: GCF of 20, 46, 47, 88, 90 is 1.

2. How to Find the GCF of 20, 46, 47, 88, 90

Answer: Greatest Common Factor(GCF) of 20, 46, 47, 88, 90 = 1

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

Step 2: Then multiply all the prime factors GCF(20, 46, 47, 88, 90) = 1.