Greatest Common Factor of 1255 and 1261

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 1255, 1261 i.e. 1 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 1255 and 1261 is 1.

GCF(1255,1261) = 1

GCF of 1255 and 1261

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

GCF of:
and

Greatest Common Factor of 1255 and 1261

GCF of 1255 and 1261 is 1

Prime Factorization of 1255


5 1255
251 251
1

Prime factors of 1255 are 5,251. Prime factorization of 1255 in exponential form is:

1255 = 51×2511

Prime Factorization of 1261


13 1261
97 97
1

Prime factors of 1261 are 13,97. Prime factorization of 1261 in exponential form is:

1261 = 131×971

∴ So by taking common prime factors GCF of 1255 and 1261 is 1

Greatest Common Factor of 1255 and 1261 by matching factors method

Factors of 1255

List of positive integer factors of 1255 that divides 1255 without a remainder.

1,5,251,1255

Factors of 1261

List of positive integer factors of 1261 that divides 1261 without a remainder.

1,13,97,1261

Greatest Common Factor

We found the factors and prime factorization of 1255 and 1261. The biggest common factor number is the GCF number.
So the greatest common factor 1255 and 1261 is 1.

Also check out the Least Common Multiple of 1255 and 1261

Properties of GCF 1255 and 1261

(i) The GCF of 1255 and 1261 is associative

GCF of 1255 and 1261 = GCF of 1261 and 1255

Related Greatest Common Factor of 1255

Related Greatest Common Factor of 1261

Frequently Asked Questions on GCF of 1255 and 1261

1. What is the GCF of 1255 and 1261?

Answer: GCF of 1255 and 1261 is 1.

2. What are the Factors of 1255?

Answer: Factors of 1255 are 1, 5, 251, 1255. There are 4 integers that are factors of 1255. The greatest factor of 1255 is 1255.

3. What are the Factors of 1261?

Answer: Factors of 1261 are 1, 13, 97, 1261. There are 4 integers that are factors of 1261. The greatest factor of 1261 is 1261.

4. How to Find the GCF of 1255 and 1261?

Answer:

Greatest Common Factor of 1255 and 1261 = 1

Step 1: Find the prime factorization of 1255

1255 = 5 x 251

Step 2: Find the prime factorization of 1261

1261 = 13 x 97

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

GCF = = 1

Step 4: Therefore, the greatest common factor of 1255 and 1261 is 1