Greatest Common Factor of 20, 87, 49, 74

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

• Greatest Common Factor of 20, 87, 49, 74 by common division method
• Greatest Common Factor of 20, 87, 49, 74 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 87

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

1,3,29,87

Factors of 49

List of positive integer factors of 49 that divides 49 without a remainder.

1,7,49

Factors of 74

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

1,2,37,74

Greatest Common Factor

We found the factors 20,87,49,74 . The biggest common factor number is the GCF number.
So the greatest common factor 20,87,49,74 is 1.

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

• GCF of 93, 44, 38, 65
• GCF of 77, 51, 18, 90
• GCF of 39, 71, 87, 17
• GCF of 26, 19, 36, 85
• GCF of 42, 44, 44, 13

1. What is the GCF of 20, 87, 49, 74?

Answer: GCF of 20, 87, 49, 74 is 1.

2. How to Find the GCF of 20, 87, 49, 74

Answer: Greatest Common Factor(GCF) of 20, 87, 49, 74 = 1

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

Step 2: Then multiply all the prime factors GCF(20, 87, 49, 74) = 1.