Greatest Common Factor of 47, 55, 38, 90

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

• Greatest Common Factor of 47, 55, 38, 90 by common division method
• Greatest Common Factor of 47, 55, 38, 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 47

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

1,47

Factors of 55

List of positive integer factors of 55 that divides 55 without a remainder.

1,5,11,55

Factors of 38

List of positive integer factors of 38 that divides 38 without a remainder.

1,2,19,38

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 47,55,38,90 . The biggest common factor number is the GCF number.
So the greatest common factor 47,55,38,90 is 1.

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

• GCF of 78, 71, 49, 21
• GCF of 14, 15, 59, 93
• GCF of 43, 89, 85, 64
• GCF of 97, 56, 42, 96
• GCF of 49, 79, 73, 40

1. What is the GCF of 47, 55, 38, 90?

Answer: GCF of 47, 55, 38, 90 is 1.

2. How to Find the GCF of 47, 55, 38, 90

Answer: Greatest Common Factor(GCF) of 47, 55, 38, 90 = 1

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

Step 2: Then multiply all the prime factors GCF(47, 55, 38, 90) = 1.