LCM of 418, 381, 456, 644
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 418, 381, 456, 644 with the LCM of Two or More Numbers Calculator. Here we are teaching you two different methods through which you can calculate the LCM of 418, 381, 456, 644. So, keep reading to learn more.
Given numbers are 418,381,456,644
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 418,381,456,644 is 102562152.
Find LCM of 418,381,456,644 with Prime Factorization
| 2 | 418, 381, 456, 644 |
| 2 | 209, 381, 228, 322 |
| 3 | 209, 381, 114, 161 |
| 19 | 209, 127, 38, 161 |
| 11, 127, 2, 161 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 19 x 11 x 127 x 2 x 161 = 102562152
Therefore, the lowest common multiple of 418,381,456,644 is 102562152.
LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}
Firstly, we have to find the product of all the numbers.
418 x 381 x 456 x 644 = 46768341312
Then, let us find the GCF of these five numbers. To do so, we have to list down the factors for each number and choose the highest factor that is in all of the lists.
418 : 1, 2, 11, 19, 22, 38, 209, 418
381 : 1, 3, 127, 381
456 : 1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 152, 228, 456
644 : 1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 418,381,456,644, is 1.
Now, the common factors can be found like this.
418:2x 11x 19
381:3x 127
456:2x 2x 2x 3x 19
644:2x 2x 7x 23
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 2x 2x 3x 19 = 456
Therefore, the value for common factors is 456.
Now that we have all the elements of the formula, we can plug them in to calculate the LCM.
LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}
LCM = 46768341312/(1x456)
LCM = 46768341312/456
LCM = 102562152
Thus, we can understand that the LCM of 418,381,456,644 is 102562152.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 418, 381, 456, 644
1. What is the LCM of 418, 381, 456, 644?
Answer: LCM of 418, 381, 456, 644 is 102562152.
2. How to calculate the LCM of 418, 381, 456, 644?
The LCM can be found using two methods. You can either use the LCM formula or the prime factorization method to calculate the LCM of 418, 381, 456, 644.
3. What is the LCM formula?
The LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}.