LCM of 931, 850, 640, 221, 977
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 931, 850, 640, 221, 977 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 931, 850, 640, 221, 977. So, keep reading to learn more.
Given numbers are 931,850,640,221,977
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 931,850,640,221,977 is 643259926400.
Find LCM of 931,850,640,221,977 with Prime Factorization
| 2 | 931, 850, 640, 221, 977 |
| 5 | 931, 425, 320, 221, 977 |
| 17 | 931, 85, 64, 221, 977 |
| 931, 5, 64, 13, 977 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 17 x 931 x 5 x 64 x 13 x 977 = 643259926400
Therefore, the lowest common multiple of 931,850,640,221,977 is 643259926400.
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.
931 x 850 x 640 x 221 x 977 = 109354187488000
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.
931 : 1, 7, 19, 49, 133, 931
850 : 1, 2, 5, 10, 17, 25, 34, 50, 85, 170, 425, 850
640 : 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640
221 : 1, 13, 17, 221
977 : 1, 977
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 931,850,640,221,977, is 1.
Now, the common factors can be found like this.
931:7x 7x 19
850:2x 5x 5x 17
640:2x 2x 2x 2x 2x 2x 2x 5
221:13x 17
977:977
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 17 = 170
Therefore, the value for common factors is 170.
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 = 109354187488000/(1x170)
LCM = 109354187488000/170
LCM = 643259926400
Thus, we can understand that the LCM of 931,850,640,221,977 is 643259926400.
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FAQs on LCM of 931, 850, 640, 221, 977
1. What is the LCM of 931, 850, 640, 221, 977?
Answer: LCM of 931, 850, 640, 221, 977 is 643259926400.
2. How to calculate the LCM of 931, 850, 640, 221, 977?
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 931, 850, 640, 221, 977.
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}.