LCM of 287, 745, 688, 943, 490
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 287, 745, 688, 943, 490 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 287, 745, 688, 943, 490. So, keep reading to learn more.
Given numbers are 287,745,688,943,490
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 287,745,688,943,490 is 23683859920.
Find LCM of 287,745,688,943,490 with Prime Factorization
| 2 | 287, 745, 688, 943, 490 |
| 5 | 287, 745, 344, 943, 245 |
| 7 | 287, 149, 344, 943, 49 |
| 41 | 41, 149, 344, 943, 7 |
| 1, 149, 344, 23, 7 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 7 x 41 x 1 x 149 x 344 x 23 x 7 = 23683859920
Therefore, the lowest common multiple of 287,745,688,943,490 is 23683859920.
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.
287 x 745 x 688 x 943 x 490 = 67972677970400
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.
287 : 1, 7, 41, 287
745 : 1, 5, 149, 745
688 : 1, 2, 4, 8, 16, 43, 86, 172, 344, 688
943 : 1, 23, 41, 943
490 : 1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 287,745,688,943,490, is 1.
Now, the common factors can be found like this.
287:7x 41
745:5x 149
688:2x 2x 2x 2x 43
943:23x 41
490:2x 5x 7x 7
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 5x 7x 41 = 2870
Therefore, the value for common factors is 2870.
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 = 67972677970400/(1x2870)
LCM = 67972677970400/2870
LCM = 23683859920
Thus, we can understand that the LCM of 287,745,688,943,490 is 23683859920.
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FAQs on LCM of 287, 745, 688, 943, 490
1. What is the LCM of 287, 745, 688, 943, 490?
Answer: LCM of 287, 745, 688, 943, 490 is 23683859920.
2. How to calculate the LCM of 287, 745, 688, 943, 490?
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 287, 745, 688, 943, 490.
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}.