LCM of 261, 377, 435, 840
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 261, 377, 435, 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 261, 377, 435, 840. So, keep reading to learn more.
Given numbers are 261,377,435,840
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 261,377,435,840 is 950040.
Find LCM of 261,377,435,840 with Prime Factorization
| 3 | 261, 377, 435, 840 |
| 5 | 87, 377, 145, 280 |
| 29 | 87, 377, 29, 56 |
| 3, 13, 1, 56 |
Multiply the prime numbers at the bottom and the left side.
3 x 5 x 29 x 3 x 13 x 1 x 56 = 950040
Therefore, the lowest common multiple of 261,377,435,840 is 950040.
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.
261 x 377 x 435 x 840 = 35954263800
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.
261 : 1, 3, 9, 29, 87, 261
377 : 1, 13, 29, 377
435 : 1, 3, 5, 15, 29, 87, 145, 435
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 261,377,435,840, is 1.
Now, the common factors can be found like this.
261:3x 3x 29
377:13x 29
435:3x 5x 29
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.
3x 3x 5x 29x 29 = 37845
Therefore, the value for common factors is 37845.
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 = 35954263800/(1x37845)
LCM = 35954263800/37845
LCM = 950040
Thus, we can understand that the LCM of 261,377,435,840 is 950040.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 261, 377, 435, 840
1. What is the LCM of 261, 377, 435, 840?
Answer: LCM of 261, 377, 435, 840 is 950040.
2. How to calculate the LCM of 261, 377, 435, 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 261, 377, 435, 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}.