LCM of 418, 140, 411, 642
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 418, 140, 411, 642 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, 140, 411, 642. So, keep reading to learn more.
Given numbers are 418,140,411,642
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 418,140,411,642 is 1286767020.
Find LCM of 418,140,411,642 with Prime Factorization
| 2 | 418, 140, 411, 642 |
| 3 | 209, 70, 411, 321 |
| 209, 70, 137, 107 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 209 x 70 x 137 x 107 = 1286767020
Therefore, the lowest common multiple of 418,140,411,642 is 1286767020.
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 140 x 411 x 642 = 15441204240
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
140 : 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140
411 : 1, 3, 137, 411
642 : 1, 2, 3, 6, 107, 214, 321, 642
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 418,140,411,642, is 1.
Now, the common factors can be found like this.
418:2x 11x 19
140:2x 2x 5x 7
411:3x 137
642:2x 3x 107
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 3 = 12
Therefore, the value for common factors is 12.
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 = 15441204240/(1x12)
LCM = 15441204240/12
LCM = 1286767020
Thus, we can understand that the LCM of 418,140,411,642 is 1286767020.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 418, 140, 411, 642
1. What is the LCM of 418, 140, 411, 642?
Answer: LCM of 418, 140, 411, 642 is 1286767020.
2. How to calculate the LCM of 418, 140, 411, 642?
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, 140, 411, 642.
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}.