LCM of 844, 122, 987, 840
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 844, 122, 987, 840 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 844, 122, 987, 840. So, keep reading to learn more.
Given numbers are 844,122,987,840
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 844,122,987,840 is 508147080.
Find LCM of 844,122,987,840 with Prime Factorization
| 2 | 844, 122, 987, 840 |
| 2 | 422, 61, 987, 420 |
| 3 | 211, 61, 987, 210 |
| 7 | 211, 61, 329, 70 |
| 211, 61, 47, 10 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 7 x 211 x 61 x 47 x 10 = 508147080
Therefore, the lowest common multiple of 844,122,987,840 is 508147080.
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.
844 x 122 x 987 x 840 = 85368709440
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.
844 : 1, 2, 4, 211, 422, 844
122 : 1, 2, 61, 122
987 : 1, 3, 7, 21, 47, 141, 329, 987
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
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 844,122,987,840, is 1.
Now, the common factors can be found like this.
844:2x 2x 211
122:2x 61
987:3x 7x 47
840:2x 2x 2x 3x 5x 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 2x 2x 3x 7 = 168
Therefore, the value for common factors is 168.
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 = 85368709440/(1x168)
LCM = 85368709440/168
LCM = 508147080
Thus, we can understand that the LCM of 844,122,987,840 is 508147080.
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FAQs on LCM of 844, 122, 987, 840
1. What is the LCM of 844, 122, 987, 840?
Answer: LCM of 844, 122, 987, 840 is 508147080.
2. How to calculate the LCM of 844, 122, 987, 840?
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 844, 122, 987, 840.
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}.