Greatest Common Factor of 1290 and 1298

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 1290, 1298 i.e. 2 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 1290 and 1298 is 2.

GCF(1290,1298) = 2

GCF of 1290 and 1298

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

GCF of:
and

Greatest Common Factor of 1290 and 1298

GCF of 1290 and 1298 is 2

Prime Factorization of 1290


2 1290
3 645
5 215
43 43
1

Prime factors of 1290 are 2,3,5,43. Prime factorization of 1290 in exponential form is:

1290 = 21×31×51×431

Prime Factorization of 1298


2 1298
11 649
59 59
1

Prime factors of 1298 are 2,11,59. Prime factorization of 1298 in exponential form is:

1298 = 21×111×591

∴ So by taking common prime factors GCF of 1290 and 1298 is 2

Greatest Common Factor of 1290 and 1298 by matching factors method

Factors of 1290

List of positive integer factors of 1290 that divides 1290 without a remainder.

1,2,3,5,6,10,15,30,43,86,129,215,258,430,645,1290

Factors of 1298

List of positive integer factors of 1298 that divides 1298 without a remainder.

1,2,11,22,59,118,649,1298

Greatest Common Factor

We found the factors and prime factorization of 1290 and 1298. The biggest common factor number is the GCF number.
So the greatest common factor 1290 and 1298 is 2.

Also check out the Least Common Multiple of 1290 and 1298

Properties of GCF 1290 and 1298

(i) The GCF of 1290 and 1298 is associative

GCF of 1290 and 1298 = GCF of 1298 and 1290

Related Greatest Common Factor of 1290

Related Greatest Common Factor of 1298

Frequently Asked Questions on GCF of 1290 and 1298

1. What is the GCF of 1290 and 1298?

Answer: GCF of 1290 and 1298 is 2.

2. What are the Factors of 1290?

Answer: Factors of 1290 are 1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290. There are 16 integers that are factors of 1290. The greatest factor of 1290 is 1290.

3. What are the Factors of 1298?

Answer: Factors of 1298 are 1, 2, 11, 22, 59, 118, 649, 1298. There are 8 integers that are factors of 1298. The greatest factor of 1298 is 1298.

4. How to Find the GCF of 1290 and 1298?

Answer:

Greatest Common Factor of 1290 and 1298 = 2

Step 1: Find the prime factorization of 1290

1290 = 2 x 3 x 5 x 43

Step 2: Find the prime factorization of 1298

1298 = 2 x 11 x 59

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

GCF = 2

Step 4: Therefore, the greatest common factor of 1290 and 1298 is 2