Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1155 and 1162 the smallest integer that is 191730 that is divisible by both numbers.
Least Common Multiple (LCM) of 1155 and 1162 is 191730.
LCM(1155,1162) = 191730
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 1155 and 1162. First we will calculate the prime factors of 1155 and 1162.
Prime Factorization of 1155
3 | 1155 |
5 | 385 |
7 | 77 |
11 | 11 |
1 |
Prime factors of 1155 are 3, 5, 7,11. Prime factorization of 1155 in exponential form is:
1155 = 31×51×71×111
Prime Factorization of 1162
2 | 1162 |
7 | 581 |
83 | 83 |
1 |
Prime factors of 1162 are 2, 7,83. Prime factorization of 1162 in exponential form is:
1162 = 21×71×831
Now multiplying the highest exponent prime factors to calculate the LCM of 1155 and 1162.
LCM(1155,1162) = 21×31×51×71×111×831
LCM(1155,1162) = 191730
Factors of 1155
List of positive integer factors of 1155 that divides 1155 without a remainder.
1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1155
Factors of 1162
List of positive integer factors of 1162 that divides 1162 without a remainder.
1, 2, 7, 14, 83, 166, 581, 1162
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1155 and 1162, than apply into the LCM equation.
GCF(1155,1162) = 7
LCM(1155,1162) = ( 1155 × 1162) / 7
LCM(1155,1162) = 1342110 / 7
LCM(1155,1162) = 191730
(i) The LCM of 1162 and 1155 is associative
LCM of 1155 and 1162 = LCM of 1162 and 1155
1. What is the LCM of 1155 and 1162?
Answer: LCM of 1155 and 1162 is 191730.
2. What are the Factors of 1155?
Answer: Factors of 1155 are 1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1155. There are 16 integers that are factors of 1155. The greatest factor of 1155 is 1155.
3. What are the Factors of 1162?
Answer: Factors of 1162 are 1, 2, 7, 14, 83, 166, 581, 1162. There are 8 integers that are factors of 1162. The greatest factor of 1162 is 1162.
4. How to Find the LCM of 1155 and 1162?
Answer:
Least Common Multiple of 1155 and 1162 = 191730
Step 1: Find the prime factorization of 1155
1155 = 3 x 5 x 7 x 11
Step 2: Find the prime factorization of 1162
1162 = 2 x 7 x 83
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 191730 = 2 x 3 x 5 x 7 x 11 x 83
Step 4: Therefore, the least common multiple of 1155 and 1162 is 191730.