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 742, 749 i.e. 7 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 742 and 749 is 7.
GCF(742,749) = 7
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 742
2 | 742 |
7 | 371 |
53 | 53 |
1 |
Prime factors of 742 are 2,7,53. Prime factorization of 742 in exponential form is:
742 = 21×71×531
Prime Factorization of 749
7 | 749 |
107 | 107 |
1 |
Prime factors of 749 are 7,107. Prime factorization of 749 in exponential form is:
749 = 71×1071
∴ So by taking common prime factors GCF of 742 and 749 is 7
Factors of 742
List of positive integer factors of 742 that divides 742 without a remainder.
1,2,7,14,53,106,371,742
Factors of 749
List of positive integer factors of 749 that divides 749 without a remainder.
1,7,107,749
Greatest Common Factor
We found the factors and prime factorization of 742 and 749. The biggest common factor number is the GCF number.
So the greatest common factor 742 and 749 is 7.
Also check out the Least Common Multiple of 742 and 749
(i) The GCF of 742 and 749 is associative
GCF of 742 and 749 = GCF of 749 and 742
1. What is the GCF of 742 and 749?
Answer: GCF of 742 and 749 is 7.
2. What are the Factors of 742?
Answer: Factors of 742 are 1, 2, 7, 14, 53, 106, 371, 742. There are 8 integers that are factors of 742. The greatest factor of 742 is 742.
3. What are the Factors of 749?
Answer: Factors of 749 are 1, 7, 107, 749. There are 4 integers that are factors of 749. The greatest factor of 749 is 749.
4. How to Find the GCF of 742 and 749?
Answer:
Greatest Common Factor of 742 and 749 = 7
Step 1: Find the prime factorization of 742
742 = 2 x 7 x 53
Step 2: Find the prime factorization of 749
749 = 7 x 107
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 7
Step 4: Therefore, the greatest common factor of 742 and 749 is 7