Find the LCM of 782, 918, 642, 891 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 782, 918, 642, 891. So, keep reading to learn more.
Given numbers are 782,918,642,891
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 782,918,642,891 is 74553534.
Find LCM of 782,918,642,891 with Prime Factorization
2 | 782, 918, 642, 891 |
3 | 391, 459, 321, 891 |
3 | 391, 153, 107, 297 |
3 | 391, 51, 107, 99 |
17 | 391, 17, 107, 33 |
23, 1, 107, 33 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 3 x 3 x 17 x 23 x 1 x 107 x 33 = 74553534
Therefore, the lowest common multiple of 782,918,642,891 is 74553534.
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.
782 x 918 x 642 x 891 = 410640865272
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.
782 : 1, 2, 17, 23, 34, 46, 391, 782
918 : 1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 102, 153, 306, 459, 918
642 : 1, 2, 3, 6, 107, 214, 321, 642
891 : 1, 3, 9, 11, 27, 33, 81, 99, 297, 891
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 782,918,642,891, is 1.
Now, the common factors can be found like this.
782:2x 17x 23
918:2x 3x 3x 3x 17
642:2x 3x 107
891:3x 3x 3x 3x 11
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 3x 3x 17 = 5508
Therefore, the value for common factors is 5508.
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 = 410640865272/(1x5508)
LCM = 410640865272/5508
LCM = 74553534
Thus, we can understand that the LCM of 782,918,642,891 is 74553534.
Here are some samples of LCM of two or more Numbers calculations.
1. What is the LCM of 782, 918, 642, 891?
Answer: LCM of 782, 918, 642, 891 is 74553534.
2. How to calculate the LCM of 782, 918, 642, 891?
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 782, 918, 642, 891.
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}.