Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 73 and 75 the smallest integer that is 5475 that is divisible by both numbers.
Least Common Multiple (LCM) of 73 and 75 is 5475.
LCM(73,75) = 5475
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 73 and 75. First we will calculate the prime factors of 73 and 75.
Prime Factorization of 73
73 | 73 |
1 |
Prime factors of 73 are 73. Prime factorization of 73 in exponential form is:
73 = 731
Prime Factorization of 75
3 | 75 |
5 | 25 |
5 | 5 |
1 |
Prime factors of 75 are 3,5. Prime factorization of 75 in exponential form is:
75 = 31×52
Now multiplying the highest exponent prime factors to calculate the LCM of 73 and 75.
LCM(73,75) = 31×52×731
LCM(73,75) = 5475
Factors of 73
List of positive integer factors of 73 that divides 73 without a remainder.
1, 73
Factors of 75
List of positive integer factors of 75 that divides 75 without a remainder.
1, 3, 5, 15, 25, 75
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 73 and 75, than apply into the LCM equation.
GCF(73,75) = 1
LCM(73,75) = ( 73 × 75) / 1
LCM(73,75) = 5475 / 1
LCM(73,75) = 5475
(i) The LCM of 75 and 73 is associative
LCM of 73 and 75 = LCM of 75 and 73
1. What is the LCM of 73 and 75?
Answer: LCM of 73 and 75 is 5475.
2. What are the Factors of 73?
Answer: Factors of 73 are 1, 73. There are 2 integers that are factors of 73. The greatest factor of 73 is 73.
3. What are the Factors of 75?
Answer: Factors of 75 are 1, 3, 5, 15, 25, 75. There are 6 integers that are factors of 75. The greatest factor of 75 is 75.
4. How to Find the LCM of 73 and 75?
Answer:
Least Common Multiple of 73 and 75 = 5475
Step 1: Find the prime factorization of 73
73 = 73
Step 2: Find the prime factorization of 75
75 = 3 x 5 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 = 5475 = 3 x 5 x 5 x 73
Step 4: Therefore, the least common multiple of 73 and 75 is 5475.