LCM of 749, 434, 815, 978, 278
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 749, 434, 815, 978, 278 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, 434, 815, 978, 278. So, keep reading to learn more.
Given numbers are 749,434,815,978,278
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 749,434,815,978,278 is 15782186490.
Find LCM of 749,434,815,978,278 with Prime Factorization
| 2 | 749, 434, 815, 978, 278 |
| 7 | 749, 217, 815, 489, 139 |
| 163 | 107, 31, 815, 489, 139 |
| 107, 31, 5, 3, 139 |
Multiply the prime numbers at the bottom and the left side.
2 x 7 x 163 x 107 x 31 x 5 x 3 x 139 = 15782186490
Therefore, the lowest common multiple of 749,434,815,978,278 is 15782186490.
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 434 x 815 x 978 x 278 = 72029899140360
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
434 : 1, 2, 7, 14, 31, 62, 217, 434
815 : 1, 5, 163, 815
978 : 1, 2, 3, 6, 163, 326, 489, 978
278 : 1, 2, 139, 278
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 749,434,815,978,278, is 1.
Now, the common factors can be found like this.
749:7x 107
434:2x 7x 31
815:5x 163
978:2x 3x 163
278:2x 139
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 7x 163 = 4564
Therefore, the value for common factors is 4564.
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 = 72029899140360/(1x4564)
LCM = 72029899140360/4564
LCM = 15782186490
Thus, we can understand that the LCM of 749,434,815,978,278 is 15782186490.
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FAQs on LCM of 749, 434, 815, 978, 278
1. What is the LCM of 749, 434, 815, 978, 278?
Answer: LCM of 749, 434, 815, 978, 278 is 15782186490.
2. How to calculate the LCM of 749, 434, 815, 978, 278?
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, 434, 815, 978, 278.
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}.