Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 46 and 54 the smallest integer that is 1242 that is divisible by both numbers.
Least Common Multiple (LCM) of 46 and 54 is 1242.
LCM(46,54) = 1242
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 46 and 54. First we will calculate the prime factors of 46 and 54.
Prime Factorization of 46
2 | 46 |
23 | 23 |
1 |
Prime factors of 46 are 2,23. Prime factorization of 46 in exponential form is:
46 = 21×231
Prime Factorization of 54
2 | 54 |
3 | 27 |
3 | 9 |
3 | 3 |
1 |
Prime factors of 54 are 2,3. Prime factorization of 54 in exponential form is:
54 = 21×33
Now multiplying the highest exponent prime factors to calculate the LCM of 46 and 54.
LCM(46,54) = 21×33×231
LCM(46,54) = 1242
Factors of 46
List of positive integer factors of 46 that divides 46 without a remainder.
1, 2, 23, 46
Factors of 54
List of positive integer factors of 54 that divides 54 without a remainder.
1, 2, 3, 6, 9, 18, 27, 54
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 46 and 54, than apply into the LCM equation.
GCF(46,54) = 2
LCM(46,54) = ( 46 × 54) / 2
LCM(46,54) = 2484 / 2
LCM(46,54) = 1242
(i) The LCM of 54 and 46 is associative
LCM of 46 and 54 = LCM of 54 and 46
1. What is the LCM of 46 and 54?
Answer: LCM of 46 and 54 is 1242.
2. What are the Factors of 46?
Answer: Factors of 46 are 1, 2, 23, 46. There are 4 integers that are factors of 46. The greatest factor of 46 is 46.
3. What are the Factors of 54?
Answer: Factors of 54 are 1, 2, 3, 6, 9, 18, 27, 54. There are 8 integers that are factors of 54. The greatest factor of 54 is 54.
4. How to Find the LCM of 46 and 54?
Answer:
Least Common Multiple of 46 and 54 = 1242
Step 1: Find the prime factorization of 46
46 = 2 x 23
Step 2: Find the prime factorization of 54
54 = 2 x 3 x 3 x 3
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1242 = 2 x 3 x 3 x 3 x 23
Step 4: Therefore, the least common multiple of 46 and 54 is 1242.