Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1065 and 1071 the smallest integer that is 380205 that is divisible by both numbers.
Least Common Multiple (LCM) of 1065 and 1071 is 380205.
LCM(1065,1071) = 380205
Least common multiple or lowest common denominator (LCD) can be calculated in three ways;
Least common multiple can be found by multiplying the highest exponent prime factors of 1065 and 1071. First we will calculate the prime factors of 1065 and 1071.
Prime Factorization of 1065
3 | 1065 |
5 | 355 |
71 | 71 |
1 |
Prime factors of 1065 are 3, 5,71. Prime factorization of 1065 in exponential form is:
1065 = 31×51×711
Prime Factorization of 1071
3 | 1071 |
3 | 357 |
7 | 119 |
17 | 17 |
1 |
Prime factors of 1071 are 3, 7,17. Prime factorization of 1071 in exponential form is:
1071 = 32×71×171
Now multiplying the highest exponent prime factors to calculate the LCM of 1065 and 1071.
LCM(1065,1071) = 32×51×71×171×711
LCM(1065,1071) = 380205
Factors of 1065
List of positive integer factors of 1065 that divides 1065 without a remainder.
1, 3, 5, 15, 71, 213, 355, 1065
Factors of 1071
List of positive integer factors of 1071 that divides 1071 without a remainder.
1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1065 and 1071, than apply into the LCM equation.
GCF(1065,1071) = 3
LCM(1065,1071) = ( 1065 × 1071) / 3
LCM(1065,1071) = 1140615 / 3
LCM(1065,1071) = 380205
(i) The LCM of 1071 and 1065 is associative
LCM of 1065 and 1071 = LCM of 1071 and 1065
1. What is the LCM of 1065 and 1071?
Answer: LCM of 1065 and 1071 is 380205.
2. What are the Factors of 1065?
Answer: Factors of 1065 are 1, 3, 5, 15, 71, 213, 355, 1065. There are 8 integers that are factors of 1065. The greatest factor of 1065 is 1065.
3. What are the Factors of 1071?
Answer: Factors of 1071 are 1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071. There are 12 integers that are factors of 1071. The greatest factor of 1071 is 1071.
4. How to Find the LCM of 1065 and 1071?
Answer:
Least Common Multiple of 1065 and 1071 = 380205
Step 1: Find the prime factorization of 1065
1065 = 3 x 5 x 71
Step 2: Find the prime factorization of 1071
1071 = 3 x 3 x 7 x 17
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 380205 = 3 x 3 x 5 x 7 x 17 x 71
Step 4: Therefore, the least common multiple of 1065 and 1071 is 380205.