LCM of 615, 802, 978, 742
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 615, 802, 978, 742 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 615, 802, 978, 742. So, keep reading to learn more.
Given numbers are 615,802,978,742
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 615,802,978,742 is 29827097790.
Find LCM of 615,802,978,742 with Prime Factorization
| 2 | 615, 802, 978, 742 |
| 3 | 615, 401, 489, 371 |
| 205, 401, 163, 371 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 205 x 401 x 163 x 371 = 29827097790
Therefore, the lowest common multiple of 615,802,978,742 is 29827097790.
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.
615 x 802 x 978 x 742 = 357925173480
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.
615 : 1, 3, 5, 15, 41, 123, 205, 615
802 : 1, 2, 401, 802
978 : 1, 2, 3, 6, 163, 326, 489, 978
742 : 1, 2, 7, 14, 53, 106, 371, 742
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 615,802,978,742, is 1.
Now, the common factors can be found like this.
615:3x 5x 41
802:2x 401
978:2x 3x 163
742:2x 7x 53
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 3 = 12
Therefore, the value for common factors is 12.
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 = 357925173480/(1x12)
LCM = 357925173480/12
LCM = 29827097790
Thus, we can understand that the LCM of 615,802,978,742 is 29827097790.
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FAQs on LCM of 615, 802, 978, 742
1. What is the LCM of 615, 802, 978, 742?
Answer: LCM of 615, 802, 978, 742 is 29827097790.
2. How to calculate the LCM of 615, 802, 978, 742?
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 615, 802, 978, 742.
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}.