LCM of 173, 240, 858, 405, 840
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 173, 240, 858, 405, 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 173, 240, 858, 405, 840. So, keep reading to learn more.
Given numbers are 173,240,858,405,840
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 173,240,858,405,840 is 1122161040.
Find LCM of 173,240,858,405,840 with Prime Factorization
| 2 | 173, 240, 858, 405, 840 |
| 2 | 173, 120, 429, 405, 420 |
| 2 | 173, 60, 429, 405, 210 |
| 3 | 173, 30, 429, 405, 105 |
| 5 | 173, 10, 143, 135, 35 |
| 173, 2, 143, 27, 7 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 2 x 3 x 5 x 173 x 2 x 143 x 27 x 7 = 1122161040
Therefore, the lowest common multiple of 173,240,858,405,840 is 1122161040.
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.
173 x 240 x 858 x 405 x 840 = 12119339232000
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.
173 : 1, 173
240 : 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240
858 : 1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 143, 286, 429, 858
405 : 1, 3, 5, 9, 15, 27, 45, 81, 135, 405
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 173,240,858,405,840, is 1.
Now, the common factors can be found like this.
173:173
240:2x 2x 2x 2x 3x 5
858:2x 3x 11x 13
405:3x 3x 3x 3x 5
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 2x 3x 3x 3x 5x 5 = 10800
Therefore, the value for common factors is 10800.
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 = 12119339232000/(1x10800)
LCM = 12119339232000/10800
LCM = 1122161040
Thus, we can understand that the LCM of 173,240,858,405,840 is 1122161040.
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FAQs on LCM of 173, 240, 858, 405, 840
1. What is the LCM of 173, 240, 858, 405, 840?
Answer: LCM of 173, 240, 858, 405, 840 is 1122161040.
2. How to calculate the LCM of 173, 240, 858, 405, 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 173, 240, 858, 405, 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}.