LCM of 788, 516, 690, 426
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 788, 516, 690, 426 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 788, 516, 690, 426. So, keep reading to learn more.
Given numbers are 788,516,690,426
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 788,516,690,426 is 829988580.
Find LCM of 788,516,690,426 with Prime Factorization
| 2 | 788, 516, 690, 426 |
| 2 | 394, 258, 345, 213 |
| 3 | 197, 129, 345, 213 |
| 197, 43, 115, 71 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 197 x 43 x 115 x 71 = 829988580
Therefore, the lowest common multiple of 788,516,690,426 is 829988580.
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.
788 x 516 x 690 x 426 = 119518355520
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.
788 : 1, 2, 4, 197, 394, 788
516 : 1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516
690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
426 : 1, 2, 3, 6, 71, 142, 213, 426
2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 788,516,690,426, is 2.
Now, the common factors can be found like this.
788:2x 2x 197
516:2x 2x 3x 43
690:2x 3x 5x 23
426:2x 3x 71
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 3x 3 = 72
Therefore, the value for common factors is 72.
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 = 119518355520/(2x72)
LCM = 119518355520/144
LCM = 829988580
Thus, we can understand that the LCM of 788,516,690,426 is 829988580.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 788, 516, 690, 426
1. What is the LCM of 788, 516, 690, 426?
Answer: LCM of 788, 516, 690, 426 is 829988580.
2. How to calculate the LCM of 788, 516, 690, 426?
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 788, 516, 690, 426.
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}.