Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 41 and 45 the smallest integer that is 1845 that is divisible by both numbers.
Least Common Multiple (LCM) of 41 and 45 is 1845.
LCM(41,45) = 1845
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 41 and 45. First we will calculate the prime factors of 41 and 45.
Prime Factorization of 41
41 | 41 |
1 |
Prime factors of 41 are 41. Prime factorization of 41 in exponential form is:
41 = 411
Prime Factorization of 45
3 | 45 |
3 | 15 |
5 | 5 |
1 |
Prime factors of 45 are 3,5. Prime factorization of 45 in exponential form is:
45 = 32×51
Now multiplying the highest exponent prime factors to calculate the LCM of 41 and 45.
LCM(41,45) = 32×51×411
LCM(41,45) = 1845
Factors of 41
List of positive integer factors of 41 that divides 41 without a remainder.
1, 41
Factors of 45
List of positive integer factors of 45 that divides 45 without a remainder.
1, 3, 5, 9, 15, 45
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 41 and 45, than apply into the LCM equation.
GCF(41,45) = 1
LCM(41,45) = ( 41 × 45) / 1
LCM(41,45) = 1845 / 1
LCM(41,45) = 1845
(i) The LCM of 45 and 41 is associative
LCM of 41 and 45 = LCM of 45 and 41
1. What is the LCM of 41 and 45?
Answer: LCM of 41 and 45 is 1845.
2. What are the Factors of 41?
Answer: Factors of 41 are 1, 41. There are 2 integers that are factors of 41. The greatest factor of 41 is 41.
3. What are the Factors of 45?
Answer: Factors of 45 are 1, 3, 5, 9, 15, 45. There are 6 integers that are factors of 45. The greatest factor of 45 is 45.
4. How to Find the LCM of 41 and 45?
Answer:
Least Common Multiple of 41 and 45 = 1845
Step 1: Find the prime factorization of 41
41 = 41
Step 2: Find the prime factorization of 45
45 = 3 x 3 x 5
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1845 = 3 x 3 x 5 x 41
Step 4: Therefore, the least common multiple of 41 and 45 is 1845.