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 1002, 1005 i.e. 3 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 1002 and 1005 is 3.
GCF(1002,1005) = 3
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 1002
2 | 1002 |
3 | 501 |
167 | 167 |
1 |
Prime factors of 1002 are 2,3,167. Prime factorization of 1002 in exponential form is:
1002 = 21×31×1671
Prime Factorization of 1005
3 | 1005 |
5 | 335 |
67 | 67 |
1 |
Prime factors of 1005 are 3,5,67. Prime factorization of 1005 in exponential form is:
1005 = 31×51×671
∴ So by taking common prime factors GCF of 1002 and 1005 is 3
Factors of 1002
List of positive integer factors of 1002 that divides 1002 without a remainder.
1,2,3,6,167,334,501,1002
Factors of 1005
List of positive integer factors of 1005 that divides 1005 without a remainder.
1,3,5,15,67,201,335,1005
Greatest Common Factor
We found the factors and prime factorization of 1002 and 1005. The biggest common factor number is the GCF number.
So the greatest common factor 1002 and 1005 is 3.
Also check out the Least Common Multiple of 1002 and 1005
(i) The GCF of 1002 and 1005 is associative
GCF of 1002 and 1005 = GCF of 1005 and 1002
1. What is the GCF of 1002 and 1005?
Answer: GCF of 1002 and 1005 is 3.
2. What are the Factors of 1002?
Answer: Factors of 1002 are 1, 2, 3, 6, 167, 334, 501, 1002. There are 8 integers that are factors of 1002. The greatest factor of 1002 is 1002.
3. What are the Factors of 1005?
Answer: Factors of 1005 are 1, 3, 5, 15, 67, 201, 335, 1005. There are 8 integers that are factors of 1005. The greatest factor of 1005 is 1005.
4. How to Find the GCF of 1002 and 1005?
Answer:
Greatest Common Factor of 1002 and 1005 = 3
Step 1: Find the prime factorization of 1002
1002 = 2 x 3 x 167
Step 2: Find the prime factorization of 1005
1005 = 3 x 5 x 67
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 3
Step 4: Therefore, the greatest common factor of 1002 and 1005 is 3