Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 27 and 47 the smallest integer that is 1269 that is divisible by both numbers.
Least Common Multiple (LCM) of 27 and 47 is 1269.
LCM(27,47) = 1269
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 27 and 47. First we will calculate the prime factors of 27 and 47.
Prime Factorization of 27
3 | 27 |
3 | 9 |
3 | 3 |
1 |
Prime factors of 27 are 3. Prime factorization of 27 in exponential form is:
27 = 33
Prime Factorization of 47
47 | 47 |
1 |
Prime factors of 47 are 47. Prime factorization of 47 in exponential form is:
47 = 471
Now multiplying the highest exponent prime factors to calculate the LCM of 27 and 47.
LCM(27,47) = 33×471
LCM(27,47) = 1269
Factors of 27
List of positive integer factors of 27 that divides 27 without a remainder.
1, 3, 9, 27
Factors of 47
List of positive integer factors of 47 that divides 47 without a remainder.
1, 47
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 27 and 47, than apply into the LCM equation.
GCF(27,47) = 1
LCM(27,47) = ( 27 × 47) / 1
LCM(27,47) = 1269 / 1
LCM(27,47) = 1269
(i) The LCM of 47 and 27 is associative
LCM of 27 and 47 = LCM of 47 and 27
1. What is the LCM of 27 and 47?
Answer: LCM of 27 and 47 is 1269.
2. What are the Factors of 27?
Answer: Factors of 27 are 1, 3, 9, 27. There are 4 integers that are factors of 27. The greatest factor of 27 is 27.
3. What are the Factors of 47?
Answer: Factors of 47 are 1, 47. There are 2 integers that are factors of 47. The greatest factor of 47 is 47.
4. How to Find the LCM of 27 and 47?
Answer:
Least Common Multiple of 27 and 47 = 1269
Step 1: Find the prime factorization of 27
27 = 3 x 3 x 3
Step 2: Find the prime factorization of 47
47 = 47
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1269 = 3 x 3 x 3 x 47
Step 4: Therefore, the least common multiple of 27 and 47 is 1269.