Greatest Common Factor of 23, 80, 74, 87, 90

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

• Greatest Common Factor of 23, 80, 74, 87, 90 by common division method
• Greatest Common Factor of 23, 80, 74, 87, 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 23

List of positive integer factors of 23 that divides 23 without a remainder.

1,23

Factors of 80

List of positive integer factors of 80 that divides 80 without a remainder.

1,2,4,5,8,10,16,20,40,80

Factors of 74

List of positive integer factors of 74 that divides 74 without a remainder.

1,2,37,74

Factors of 87

List of positive integer factors of 87 that divides 87 without a remainder.

1,3,29,87

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 23,80,74,87,90 . The biggest common factor number is the GCF number.
So the greatest common factor 23,80,74,87,90 is 1.

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

• GCF of 55, 15, 56, 30, 21
• GCF of 93, 29, 48, 90, 86
• GCF of 97, 35, 89, 67, 77
• GCF of 91, 17, 10, 51, 98
• GCF of 54, 18, 18, 63, 14

1. What is the GCF of 23, 80, 74, 87, 90?

Answer: GCF of 23, 80, 74, 87, 90 is 1.

2. How to Find the GCF of 23, 80, 74, 87, 90

Answer: Greatest Common Factor(GCF) of 23, 80, 74, 87, 90 = 1

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

Step 2: Then multiply all the prime factors GCF(23, 80, 74, 87, 90) = 1.