LCM of 468, 640, 981, 154, 978
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 468, 640, 981, 154, 978 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 468, 640, 981, 154, 978. So, keep reading to learn more.
Given numbers are 468,640,981,154,978
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 468,640,981,154,978 is 102440257920.
Find LCM of 468,640,981,154,978 with Prime Factorization
| 2 | 468, 640, 981, 154, 978 |
| 2 | 234, 320, 981, 77, 489 |
| 3 | 117, 160, 981, 77, 489 |
| 3 | 39, 160, 327, 77, 163 |
| 13, 160, 109, 77, 163 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 3 x 13 x 160 x 109 x 77 x 163 = 102440257920
Therefore, the lowest common multiple of 468,640,981,154,978 is 102440257920.
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.
468 x 640 x 981 x 154 x 978 = 44254191421440
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.
468 : 1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468
640 : 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640
981 : 1, 3, 9, 109, 327, 981
154 : 1, 2, 7, 11, 14, 22, 77, 154
978 : 1, 2, 3, 6, 163, 326, 489, 978
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 468,640,981,154,978, is 1.
Now, the common factors can be found like this.
468:2x 2x 3x 3x 13
640:2x 2x 2x 2x 2x 2x 2x 5
981:3x 3x 109
154:2x 7x 11
978:2x 3x 163
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 2x 3x 3x 3 = 432
Therefore, the value for common factors is 432.
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 = 44254191421440/(1x432)
LCM = 44254191421440/432
LCM = 102440257920
Thus, we can understand that the LCM of 468,640,981,154,978 is 102440257920.
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FAQs on LCM of 468, 640, 981, 154, 978
1. What is the LCM of 468, 640, 981, 154, 978?
Answer: LCM of 468, 640, 981, 154, 978 is 102440257920.
2. How to calculate the LCM of 468, 640, 981, 154, 978?
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 468, 640, 981, 154, 978.
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}.