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 842, 849 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 842 and 849 is 1.
GCF(842,849) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 842
2 | 842 |
421 | 421 |
1 |
Prime factors of 842 are 2,421. Prime factorization of 842 in exponential form is:
842 = 21×4211
Prime Factorization of 849
3 | 849 |
283 | 283 |
1 |
Prime factors of 849 are 3,283. Prime factorization of 849 in exponential form is:
849 = 31×2831
∴ So by taking common prime factors GCF of 842 and 849 is 1
Factors of 842
List of positive integer factors of 842 that divides 842 without a remainder.
1,2,421,842
Factors of 849
List of positive integer factors of 849 that divides 849 without a remainder.
1,3,283,849
Greatest Common Factor
We found the factors and prime factorization of 842 and 849. The biggest common factor number is the GCF number.
So the greatest common factor 842 and 849 is 1.
Also check out the Least Common Multiple of 842 and 849
(i) The GCF of 842 and 849 is associative
GCF of 842 and 849 = GCF of 849 and 842
1. What is the GCF of 842 and 849?
Answer: GCF of 842 and 849 is 1.
2. What are the Factors of 842?
Answer: Factors of 842 are 1, 2, 421, 842. There are 4 integers that are factors of 842. The greatest factor of 842 is 842.
3. What are the Factors of 849?
Answer: Factors of 849 are 1, 3, 283, 849. There are 4 integers that are factors of 849. The greatest factor of 849 is 849.
4. How to Find the GCF of 842 and 849?
Answer:
Greatest Common Factor of 842 and 849 = 1
Step 1: Find the prime factorization of 842
842 = 2 x 421
Step 2: Find the prime factorization of 849
849 = 3 x 283
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 842 and 849 is 1