LCM of 810, 642, 955, 749
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 810, 642, 955, 749 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 810, 642, 955, 749. So, keep reading to learn more.
Given numbers are 810,642,955,749
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 810,642,955,749 is 115877790.
Find LCM of 810,642,955,749 with Prime Factorization
| 2 | 810, 642, 955, 749 |
| 3 | 405, 321, 955, 749 |
| 5 | 135, 107, 955, 749 |
| 107 | 27, 107, 191, 749 |
| 27, 1, 191, 7 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 5 x 107 x 27 x 1 x 191 x 7 = 115877790
Therefore, the lowest common multiple of 810,642,955,749 is 115877790.
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.
810 x 642 x 955 x 749 = 371967705900
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.
810 : 1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810
642 : 1, 2, 3, 6, 107, 214, 321, 642
955 : 1, 5, 191, 955
749 : 1, 7, 107, 749
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 810,642,955,749, is 1.
Now, the common factors can be found like this.
810:2x 3x 3x 3x 3x 5
642:2x 3x 107
955:5x 191
749:7x 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 3x 5x 107 = 3210
Therefore, the value for common factors is 3210.
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 = 371967705900/(1x3210)
LCM = 371967705900/3210
LCM = 115877790
Thus, we can understand that the LCM of 810,642,955,749 is 115877790.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 810, 642, 955, 749
1. What is the LCM of 810, 642, 955, 749?
Answer: LCM of 810, 642, 955, 749 is 115877790.
2. How to calculate the LCM of 810, 642, 955, 749?
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 810, 642, 955, 749.
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}.