Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 74 and 75 the smallest integer that is 5550 that is divisible by both numbers.
Least Common Multiple (LCM) of 74 and 75 is 5550.
LCM(74,75) = 5550
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 74 and 75. First we will calculate the prime factors of 74 and 75.
Prime Factorization of 74
2 | 74 |
37 | 37 |
1 |
Prime factors of 74 are 2,37. Prime factorization of 74 in exponential form is:
74 = 21×371
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 74 and 75.
LCM(74,75) = 21×31×52×371
LCM(74,75) = 5550
Factors of 74
List of positive integer factors of 74 that divides 74 without a remainder.
1, 2, 37, 74
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 74 and 75, than apply into the LCM equation.
GCF(74,75) = 1
LCM(74,75) = ( 74 × 75) / 1
LCM(74,75) = 5550 / 1
LCM(74,75) = 5550
(i) The LCM of 75 and 74 is associative
LCM of 74 and 75 = LCM of 75 and 74
1. What is the LCM of 74 and 75?
Answer: LCM of 74 and 75 is 5550.
2. What are the Factors of 74?
Answer: Factors of 74 are 1, 2, 37, 74. There are 4 integers that are factors of 74. The greatest factor of 74 is 74.
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 74 and 75?
Answer:
Least Common Multiple of 74 and 75 = 5550
Step 1: Find the prime factorization of 74
74 = 2 x 37
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 = 5550 = 2 x 3 x 5 x 5 x 37
Step 4: Therefore, the least common multiple of 74 and 75 is 5550.