LCM of 124, 326, 646, 442, 390
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 124, 326, 646, 442, 390 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 124, 326, 646, 442, 390. So, keep reading to learn more.
Given numbers are 124,326,646,442,390
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 124,326,646,442,390 is 1273052820.
Find LCM of 124,326,646,442,390 with Prime Factorization
| 2 | 124, 326, 646, 442, 390 |
| 13 | 62, 163, 323, 221, 195 |
| 17 | 62, 163, 323, 17, 15 |
| 62, 163, 19, 1, 15 |
Multiply the prime numbers at the bottom and the left side.
2 x 13 x 17 x 62 x 163 x 19 x 1 x 15 = 1273052820
Therefore, the lowest common multiple of 124,326,646,442,390 is 1273052820.
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.
124 x 326 x 646 x 442 x 390 = 4501514771520
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.
124 : 1, 2, 4, 31, 62, 124
326 : 1, 2, 163, 326
646 : 1, 2, 17, 19, 34, 38, 323, 646
442 : 1, 2, 13, 17, 26, 34, 221, 442
390 : 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390
2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 124,326,646,442,390, is 2.
Now, the common factors can be found like this.
124:2x 2x 31
326:2x 163
646:2x 17x 19
442:2x 13x 17
390:2x 3x 5x 13
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 13x 17 = 1768
Therefore, the value for common factors is 1768.
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 = 4501514771520/(2x1768)
LCM = 4501514771520/3536
LCM = 1273052820
Thus, we can understand that the LCM of 124,326,646,442,390 is 1273052820.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 124, 326, 646, 442, 390
1. What is the LCM of 124, 326, 646, 442, 390?
Answer: LCM of 124, 326, 646, 442, 390 is 1273052820.
2. How to calculate the LCM of 124, 326, 646, 442, 390?
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 124, 326, 646, 442, 390.
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}.