LCM of 749, 418, 561, 370, 642
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 749, 418, 561, 370, 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 749, 418, 561, 370, 642. So, keep reading to learn more.
Given numbers are 749,418,561,370,642
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 749,418,561,370,642 is 2953928670.
Find LCM of 749,418,561,370,642 with Prime Factorization
| 2 | 749, 418, 561, 370, 642 |
| 3 | 749, 209, 561, 185, 321 |
| 11 | 749, 209, 187, 185, 107 |
| 107 | 749, 19, 17, 185, 107 |
| 7, 19, 17, 185, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 11 x 107 x 7 x 19 x 17 x 185 x 1 = 2953928670
Therefore, the lowest common multiple of 749,418,561,370,642 is 2953928670.
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.
749 x 418 x 561 x 370 x 642 = 41721288535080
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.
749 : 1, 7, 107, 749
418 : 1, 2, 11, 19, 22, 38, 209, 418
561 : 1, 3, 11, 17, 33, 51, 187, 561
370 : 1, 2, 5, 10, 37, 74, 185, 370
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 749,418,561,370,642, is 1.
Now, the common factors can be found like this.
749:7x 107
418:2x 11x 19
561:3x 11x 17
370:2x 5x 37
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 3x 11x 107 = 14124
Therefore, the value for common factors is 14124.
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 = 41721288535080/(1x14124)
LCM = 41721288535080/14124
LCM = 2953928670
Thus, we can understand that the LCM of 749,418,561,370,642 is 2953928670.
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FAQs on LCM of 749, 418, 561, 370, 642
1. What is the LCM of 749, 418, 561, 370, 642?
Answer: LCM of 749, 418, 561, 370, 642 is 2953928670.
2. How to calculate the LCM of 749, 418, 561, 370, 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 749, 418, 561, 370, 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}.