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 76 the smallest integer that is 2812 that is divisible by both numbers.
Least Common Multiple (LCM) of 74 and 76 is 2812.
LCM(74,76) = 2812
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 76. First we will calculate the prime factors of 74 and 76.
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 76
2 | 76 |
2 | 38 |
19 | 19 |
1 |
Prime factors of 76 are 2,19. Prime factorization of 76 in exponential form is:
76 = 22×191
Now multiplying the highest exponent prime factors to calculate the LCM of 74 and 76.
LCM(74,76) = 22×191×371
LCM(74,76) = 2812
Factors of 74
List of positive integer factors of 74 that divides 74 without a remainder.
1, 2, 37, 74
Factors of 76
List of positive integer factors of 76 that divides 76 without a remainder.
1, 2, 4, 19, 38, 76
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 74 and 76, than apply into the LCM equation.
GCF(74,76) = 2
LCM(74,76) = ( 74 × 76) / 2
LCM(74,76) = 5624 / 2
LCM(74,76) = 2812
(i) The LCM of 76 and 74 is associative
LCM of 74 and 76 = LCM of 76 and 74
1. What is the LCM of 74 and 76?
Answer: LCM of 74 and 76 is 2812.
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 76?
Answer: Factors of 76 are 1, 2, 4, 19, 38, 76. There are 6 integers that are factors of 76. The greatest factor of 76 is 76.
4. How to Find the LCM of 74 and 76?
Answer:
Least Common Multiple of 74 and 76 = 2812
Step 1: Find the prime factorization of 74
74 = 2 x 37
Step 2: Find the prime factorization of 76
76 = 2 x 2 x 19
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 2812 = 2 x 2 x 19 x 37
Step 4: Therefore, the least common multiple of 74 and 76 is 2812.