LCM of 299, 138, 390, 756, 643
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 299, 138, 390, 756, 643 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 299, 138, 390, 756, 643. So, keep reading to learn more.
Given numbers are 299,138,390,756,643
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 299,138,390,756,643 is 726731460.
Find LCM of 299,138,390,756,643 with Prime Factorization
| 2 | 299, 138, 390, 756, 643 |
| 3 | 299, 69, 195, 378, 643 |
| 13 | 299, 23, 65, 126, 643 |
| 23 | 23, 23, 5, 126, 643 |
| 1, 1, 5, 126, 643 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 13 x 23 x 1 x 1 x 5 x 126 x 643 = 726731460
Therefore, the lowest common multiple of 299,138,390,756,643 is 726731460.
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.
299 x 138 x 390 x 756 x 643 = 7822537435440
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.
299 : 1, 13, 23, 299
138 : 1, 2, 3, 6, 23, 46, 69, 138
390 : 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390
756 : 1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756
643 : 1, 643
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 299,138,390,756,643, is 1.
Now, the common factors can be found like this.
299:13x 23
138:2x 3x 23
390:2x 3x 5x 13
756:2x 2x 3x 3x 3x 7
643:643
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 3x 3x 13x 23 = 10764
Therefore, the value for common factors is 10764.
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 = 7822537435440/(1x10764)
LCM = 7822537435440/10764
LCM = 726731460
Thus, we can understand that the LCM of 299,138,390,756,643 is 726731460.
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FAQs on LCM of 299, 138, 390, 756, 643
1. What is the LCM of 299, 138, 390, 756, 643?
Answer: LCM of 299, 138, 390, 756, 643 is 726731460.
2. How to calculate the LCM of 299, 138, 390, 756, 643?
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 299, 138, 390, 756, 643.
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}.