Greatest Common Factor of 9855 and 9861

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023


Make use of GCF Calculator to quickly find the Greatest Common Factor of numbers 9855, 9861 i.e. 3 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 9855 and 9861 is 3.

GCF(9855,9861) = 3

GCF of 9855 and 9861

Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;

GCF of:
and

Greatest Common Factor of 9855 and 9861

GCF of 9855 and 9861 is 3

Prime Factorization of 9855


3 9855
3 3285
3 1095
5 365
73 73
1

Prime factors of 9855 are 3,5,73. Prime factorization of 9855 in exponential form is:

9855 = 33×51×731

Prime Factorization of 9861


3 9861
19 3287
173 173
1

Prime factors of 9861 are 3,19,173. Prime factorization of 9861 in exponential form is:

9861 = 31×191×1731

∴ So by taking common prime factors GCF of 9855 and 9861 is 3

Greatest Common Factor of 9855 and 9861 by matching factors method

Factors of 9855

List of positive integer factors of 9855 that divides 9855 without a remainder.

1,3,5,9,15,27,45,73,135,219,365,657,1095,1971,3285,9855

Factors of 9861

List of positive integer factors of 9861 that divides 9861 without a remainder.

1,3,19,57,173,519,3287,9861

Greatest Common Factor

We found the factors and prime factorization of 9855 and 9861. The biggest common factor number is the GCF number.
So the greatest common factor 9855 and 9861 is 3.

Also check out the Least Common Multiple of 9855 and 9861

Properties of GCF 9855 and 9861

(i) The GCF of 9855 and 9861 is associative

GCF of 9855 and 9861 = GCF of 9861 and 9855

Frequently Asked Questions on GCF of 9855 and 9861

1. What is the GCF of 9855 and 9861?

Answer: GCF of 9855 and 9861 is 3.

2. What are the Factors of 9855?

Answer: Factors of 9855 are 1, 3, 5, 9, 15, 27, 45, 73, 135, 219, 365, 657, 1095, 1971, 3285, 9855. There are 16 integers that are factors of 9855. The greatest factor of 9855 is 9855.

3. What are the Factors of 9861?

Answer: Factors of 9861 are 1, 3, 19, 57, 173, 519, 3287, 9861. There are 8 integers that are factors of 9861. The greatest factor of 9861 is 9861.

4. How to Find the GCF of 9855 and 9861?

Answer:

Greatest Common Factor of 9855 and 9861 = 3

Step 1: Find the prime factorization of 9855

9855 = 3 x 3 x 3 x 5 x 73

Step 2: Find the prime factorization of 9861

9861 = 3 x 19 x 173

Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:

GCF = 3

Step 4: Therefore, the greatest common factor of 9855 and 9861 is 3