Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 145 and 153 the smallest integer that is 22185 that is divisible by both numbers.
Least Common Multiple (LCM) of 145 and 153 is 22185.
LCM(145,153) = 22185
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 145 and 153. First we will calculate the prime factors of 145 and 153.
Prime Factorization of 145
5 | 145 |
29 | 29 |
1 |
Prime factors of 145 are 5,29. Prime factorization of 145 in exponential form is:
145 = 51×291
Prime Factorization of 153
3 | 153 |
3 | 51 |
17 | 17 |
1 |
Prime factors of 153 are 3,17. Prime factorization of 153 in exponential form is:
153 = 32×171
Now multiplying the highest exponent prime factors to calculate the LCM of 145 and 153.
LCM(145,153) = 32×51×171×291
LCM(145,153) = 22185
Factors of 145
List of positive integer factors of 145 that divides 145 without a remainder.
1, 5, 29, 145
Factors of 153
List of positive integer factors of 153 that divides 153 without a remainder.
1, 3, 9, 17, 51, 153
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 145 and 153, than apply into the LCM equation.
GCF(145,153) = 1
LCM(145,153) = ( 145 × 153) / 1
LCM(145,153) = 22185 / 1
LCM(145,153) = 22185
(i) The LCM of 153 and 145 is associative
LCM of 145 and 153 = LCM of 153 and 145
1. What is the LCM of 145 and 153?
Answer: LCM of 145 and 153 is 22185.
2. What are the Factors of 145?
Answer: Factors of 145 are 1, 5, 29, 145. There are 4 integers that are factors of 145. The greatest factor of 145 is 145.
3. What are the Factors of 153?
Answer: Factors of 153 are 1, 3, 9, 17, 51, 153. There are 6 integers that are factors of 153. The greatest factor of 153 is 153.
4. How to Find the LCM of 145 and 153?
Answer:
Least Common Multiple of 145 and 153 = 22185
Step 1: Find the prime factorization of 145
145 = 5 x 29
Step 2: Find the prime factorization of 153
153 = 3 x 3 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 = 22185 = 3 x 3 x 5 x 17 x 29
Step 4: Therefore, the least common multiple of 145 and 153 is 22185.