LCM of 535, 638, 788, 642
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 535, 638, 788, 642 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 535, 638, 788, 642. So, keep reading to learn more.
Given numbers are 535,638,788,642
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 535,638,788,642 is 403452060.
Find LCM of 535,638,788,642 with Prime Factorization
| 2 | 535, 638, 788, 642 |
| 107 | 535, 319, 394, 321 |
| 5, 319, 394, 3 |
Multiply the prime numbers at the bottom and the left side.
2 x 107 x 5 x 319 x 394 x 3 = 403452060
Therefore, the lowest common multiple of 535,638,788,642 is 403452060.
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.
535 x 638 x 788 x 642 = 172677481680
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.
535 : 1, 5, 107, 535
638 : 1, 2, 11, 22, 29, 58, 319, 638
788 : 1, 2, 4, 197, 394, 788
642 : 1, 2, 3, 6, 107, 214, 321, 642
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 535,638,788,642, is 1.
Now, the common factors can be found like this.
535:5x 107
638:2x 11x 29
788:2x 2x 197
642:2x 3x 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 2x 107 = 428
Therefore, the value for common factors is 428.
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 = 172677481680/(1x428)
LCM = 172677481680/428
LCM = 403452060
Thus, we can understand that the LCM of 535,638,788,642 is 403452060.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 535, 638, 788, 642
1. What is the LCM of 535, 638, 788, 642?
Answer: LCM of 535, 638, 788, 642 is 403452060.
2. How to calculate the LCM of 535, 638, 788, 642?
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 535, 638, 788, 642.
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}.