Greatest Common Factor of 40, 91, 55, 38

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

• Greatest Common Factor of 40, 91, 55, 38 by common division method
• Greatest Common Factor of 40, 91, 55, 38 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 40

List of positive integer factors of 40 that divides 40 without a remainder.

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

Factors of 91

List of positive integer factors of 91 that divides 91 without a remainder.

1,7,13,91

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

Greatest Common Factor

We found the factors 40,91,55,38 . The biggest common factor number is the GCF number.
So the greatest common factor 40,91,55,38 is 1.

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

• GCF of 78, 75, 78, 10
• GCF of 38, 15, 43, 24
• GCF of 30, 52, 99, 93
• GCF of 13, 59, 46, 95
• GCF of 60, 34, 35, 82

1. What is the GCF of 40, 91, 55, 38?

Answer: GCF of 40, 91, 55, 38 is 1.

2. How to Find the GCF of 40, 91, 55, 38

Answer: Greatest Common Factor(GCF) of 40, 91, 55, 38 = 1

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

Step 2: Then multiply all the prime factors GCF(40, 91, 55, 38) = 1.