Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 408 and 414 the smallest integer that is 28152 that is divisible by both numbers.
Least Common Multiple (LCM) of 408 and 414 is 28152.
LCM(408,414) = 28152
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 408 and 414. First we will calculate the prime factors of 408 and 414.
Prime Factorization of 408
2 | 408 |
2 | 204 |
2 | 102 |
3 | 51 |
17 | 17 |
1 |
Prime factors of 408 are 2, 3,17. Prime factorization of 408 in exponential form is:
408 = 23×31×171
Prime Factorization of 414
2 | 414 |
3 | 207 |
3 | 69 |
23 | 23 |
1 |
Prime factors of 414 are 2, 3,23. Prime factorization of 414 in exponential form is:
414 = 21×32×231
Now multiplying the highest exponent prime factors to calculate the LCM of 408 and 414.
LCM(408,414) = 23×32×171×231
LCM(408,414) = 28152
Factors of 408
List of positive integer factors of 408 that divides 408 without a remainder.
1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 408
Factors of 414
List of positive integer factors of 414 that divides 414 without a remainder.
1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 207, 414
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 408 and 414, than apply into the LCM equation.
GCF(408,414) = 6
LCM(408,414) = ( 408 × 414) / 6
LCM(408,414) = 168912 / 6
LCM(408,414) = 28152
(i) The LCM of 414 and 408 is associative
LCM of 408 and 414 = LCM of 414 and 408
1. What is the LCM of 408 and 414?
Answer: LCM of 408 and 414 is 28152.
2. What are the Factors of 408?
Answer: Factors of 408 are 1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 408. There are 16 integers that are factors of 408. The greatest factor of 408 is 408.
3. What are the Factors of 414?
Answer: Factors of 414 are 1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 207, 414. There are 12 integers that are factors of 414. The greatest factor of 414 is 414.
4. How to Find the LCM of 408 and 414?
Answer:
Least Common Multiple of 408 and 414 = 28152
Step 1: Find the prime factorization of 408
408 = 2 x 2 x 2 x 3 x 17
Step 2: Find the prime factorization of 414
414 = 2 x 3 x 3 x 23
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 28152 = 2 x 2 x 2 x 3 x 3 x 17 x 23
Step 4: Therefore, the least common multiple of 408 and 414 is 28152.