Greatest Common Factor of 991, 423, 990

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

• Greatest Common Factor of 991, 423, 990 by common division method
• Greatest Common Factor of 991, 423, 990 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 991

List of positive integer factors of 991 that divides 991 without a remainder.

1,991

Factors of 423

List of positive integer factors of 423 that divides 423 without a remainder.

1,3,9,47,141,423

Factors of 990

List of positive integer factors of 990 that divides 990 without a remainder.

1,2,3,5,6,9,10,11,15,18,22,30,33,45,55,66,90,99,110,165,198,330,495,990

Greatest Common Factor

We found the factors 991,423,990 . The biggest common factor number is the GCF number.
So the greatest common factor 991,423,990 is 1.

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

• GCF of 121, 106, 794
• GCF of 724, 316, 704
• GCF of 348, 890, 505
• GCF of 146, 909, 415
• GCF of 549, 978, 346

1. What is the GCF of 991, 423, 990?

Answer: GCF of 991, 423, 990 is 1.

2. How to Find the GCF of 991, 423, 990

Answer: Greatest Common Factor(GCF) of 991, 423, 990 = 1

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

Step 2: Then multiply all the prime factors GCF(991, 423, 990) = 1.