LCM of 971, 917, 840, 901, 819
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 971, 917, 840, 901, 819 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 971, 917, 840, 901, 819. So, keep reading to learn more.
Given numbers are 971,917,840,901,819
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 971,917,840,901,819 is 3754561388760.
Find LCM of 971,917,840,901,819 with Prime Factorization
| 3 | 971, 917, 840, 901, 819 |
| 7 | 971, 917, 280, 901, 273 |
| 971, 131, 40, 901, 39 |
Multiply the prime numbers at the bottom and the left side.
3 x 7 x 971 x 131 x 40 x 901 x 39 = 3754561388760
Therefore, the lowest common multiple of 971,917,840,901,819 is 3754561388760.
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.
971 x 917 x 840 x 901 x 819 = 551920524147720
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.
971 : 1, 971
917 : 1, 7, 131, 917
840 : 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840
901 : 1, 17, 53, 901
819 : 1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 971,917,840,901,819, is 1.
Now, the common factors can be found like this.
971:971
917:7x 131
840:2x 2x 2x 3x 5x 7
901:17x 53
819:3x 3x 7x 13
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 7x 7 = 147
Therefore, the value for common factors is 147.
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 = 551920524147720/(1x147)
LCM = 551920524147720/147
LCM = 3754561388760
Thus, we can understand that the LCM of 971,917,840,901,819 is 3754561388760.
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FAQs on LCM of 971, 917, 840, 901, 819
1. What is the LCM of 971, 917, 840, 901, 819?
Answer: LCM of 971, 917, 840, 901, 819 is 3754561388760.
2. How to calculate the LCM of 971, 917, 840, 901, 819?
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 971, 917, 840, 901, 819.
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}.