Greatest Common Factor of 391, 195, 90

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

• Greatest Common Factor of 391, 195, 90 by common division method
• Greatest Common Factor of 391, 195, 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 391

List of positive integer factors of 391 that divides 391 without a remainder.

1,17,23,391

Factors of 195

List of positive integer factors of 195 that divides 195 without a remainder.

1,3,5,13,15,39,65,195

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 391,195,90 . The biggest common factor number is the GCF number.
So the greatest common factor 391,195,90 is 1.

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

• GCF of 590, 588, 25
• GCF of 128, 403, 34
• GCF of 201, 836, 94
• GCF of 475, 958, 92
• GCF of 852, 787, 21

1. What is the GCF of 391, 195, 90?

Answer: GCF of 391, 195, 90 is 1.

2. How to Find the GCF of 391, 195, 90

Answer: Greatest Common Factor(GCF) of 391, 195, 90 = 1

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

Step 2: Then multiply all the prime factors GCF(391, 195, 90) = 1.