Greatest Common Factor of 91, 55, 43, 390

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

• Greatest Common Factor of 91, 55, 43, 390 by common division method
• Greatest Common Factor of 91, 55, 43, 390 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 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 43

List of positive integer factors of 43 that divides 43 without a remainder.

1,43

Factors of 390

List of positive integer factors of 390 that divides 390 without a remainder.

1,2,3,5,6,10,13,15,26,30,39,65,78,130,195,390

Greatest Common Factor

We found the factors 91,55,43,390 . The biggest common factor number is the GCF number.
So the greatest common factor 91,55,43,390 is 1.

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

• GCF of 54, 89, 91, 723
• GCF of 74, 98, 90, 864
• GCF of 76, 41, 72, 583
• GCF of 76, 21, 70, 655
• GCF of 65, 93, 50, 759

1. What is the GCF of 91, 55, 43, 390?

Answer: GCF of 91, 55, 43, 390 is 1.

2. How to Find the GCF of 91, 55, 43, 390

Answer: Greatest Common Factor(GCF) of 91, 55, 43, 390 = 1

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

Step 2: Then multiply all the prime factors GCF(91, 55, 43, 390) = 1.