LCM of 645, 813, 100, 115, 944
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 645, 813, 100, 115, 944 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 645, 813, 100, 115, 944. So, keep reading to learn more.
Given numbers are 645,813,100,115,944
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 645,813,100,115,944 is 18975745200.
Find LCM of 645,813,100,115,944 with Prime Factorization
| 2 | 645, 813, 100, 115, 944 |
| 2 | 645, 813, 50, 115, 472 |
| 3 | 645, 813, 25, 115, 236 |
| 5 | 215, 271, 25, 115, 236 |
| 43, 271, 5, 23, 236 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 5 x 43 x 271 x 5 x 23 x 236 = 18975745200
Therefore, the lowest common multiple of 645,813,100,115,944 is 18975745200.
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.
645 x 813 x 100 x 115 x 944 = 5692723560000
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.
645 : 1, 3, 5, 15, 43, 129, 215, 645
813 : 1, 3, 271, 813
100 : 1, 2, 4, 5, 10, 20, 25, 50, 100
115 : 1, 5, 23, 115
944 : 1, 2, 4, 8, 16, 59, 118, 236, 472, 944
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 645,813,100,115,944, is 1.
Now, the common factors can be found like this.
645:3x 5x 43
813:3x 271
100:2x 2x 5x 5
115:5x 23
944:2x 2x 2x 2x 59
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 5x 5 = 300
Therefore, the value for common factors is 300.
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 = 5692723560000/(1x300)
LCM = 5692723560000/300
LCM = 18975745200
Thus, we can understand that the LCM of 645,813,100,115,944 is 18975745200.
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FAQs on LCM of 645, 813, 100, 115, 944
1. What is the LCM of 645, 813, 100, 115, 944?
Answer: LCM of 645, 813, 100, 115, 944 is 18975745200.
2. How to calculate the LCM of 645, 813, 100, 115, 944?
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 645, 813, 100, 115, 944.
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}.