Greatest Common Factor of 3991, 1820

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

• Greatest Common Factor of 3991, 1820 by common division method
• Greatest Common Factor of 3991, 1820 with matching the biggest common factor

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∴ So the GCF of the given numbers is 13 = 13

Factors of 3991

List of positive integer factors of 3991 that divides 3991 without a remainder.

1,13,307,3991

Factors of 1820

List of positive integer factors of 1820 that divides 1820 without a remainder.

1,2,4,5,7,10,13,14,20,26,28,35,52,65,70,91,130,140,182,260,364,455,910,1820

Greatest Common Factor

We found the factors 3991,1820 . The biggest common factor number is the GCF number.
So the greatest common factor 3991,1820 is 13.

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

• GCF of 8221, 4260
• GCF of 8096, 9443
• GCF of 3395, 6768
• GCF of 7669, 1373
• GCF of 2891, 4118

1. What is the GCF of 3991, 1820?

Answer: GCF of 3991, 1820 is 13.

2. How to Find the GCF of 3991, 1820

Answer: Greatest Common Factor(GCF) of 3991, 1820 = 13

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

Step 2: Then multiply all the prime factors GCF(3991, 1820) = 13.