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 1242, 1250 i.e. 2 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1242 and 1250 is 2.
GCF(1242,1250) = 2
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 1242
2 | 1242 |
3 | 621 |
3 | 207 |
3 | 69 |
23 | 23 |
1 |
Prime factors of 1242 are 2,3,23. Prime factorization of 1242 in exponential form is:
1242 = 21×33×231
Prime Factorization of 1250
2 | 1250 |
5 | 625 |
5 | 125 |
5 | 25 |
5 | 5 |
1 |
Prime factors of 1250 are 2,5. Prime factorization of 1250 in exponential form is:
1250 = 21×54
∴ So by taking common prime factors GCF of 1242 and 1250 is 2
Factors of 1242
List of positive integer factors of 1242 that divides 1242 without a remainder.
1,2,3,6,9,18,23,27,46,54,69,138,207,414,621,1242
Factors of 1250
List of positive integer factors of 1250 that divides 1250 without a remainder.
1,2,5,10,25,50,125,250,625,1250
Greatest Common Factor
We found the factors and prime factorization of 1242 and 1250. The biggest common factor number is the GCF number.
So the greatest common factor 1242 and 1250 is 2.
Also check out the Least Common Multiple of 1242 and 1250
(i) The GCF of 1242 and 1250 is associative
GCF of 1242 and 1250 = GCF of 1250 and 1242
1. What is the GCF of 1242 and 1250?
Answer: GCF of 1242 and 1250 is 2.
2. What are the Factors of 1242?
Answer: Factors of 1242 are 1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 138, 207, 414, 621, 1242. There are 16 integers that are factors of 1242. The greatest factor of 1242 is 1242.
3. What are the Factors of 1250?
Answer: Factors of 1250 are 1, 2, 5, 10, 25, 50, 125, 250, 625, 1250. There are 10 integers that are factors of 1250. The greatest factor of 1250 is 1250.
4. How to Find the GCF of 1242 and 1250?
Answer:
Greatest Common Factor of 1242 and 1250 = 2
Step 1: Find the prime factorization of 1242
1242 = 2 x 3 x 3 x 3 x 23
Step 2: Find the prime factorization of 1250
1250 = 2 x 5 x 5 x 5 x 5
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 1242 and 1250 is 2