LCM of 915, 436, 865, 540
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 915, 436, 865, 540 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 915, 436, 865, 540. So, keep reading to learn more.
Given numbers are 915,436,865,540
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 915,436,865,540 is 621149580.
Find LCM of 915,436,865,540 with Prime Factorization
| 2 | 915, 436, 865, 540 |
| 2 | 915, 218, 865, 270 |
| 3 | 915, 109, 865, 135 |
| 5 | 305, 109, 865, 45 |
| 61, 109, 173, 9 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 5 x 61 x 109 x 173 x 9 = 621149580
Therefore, the lowest common multiple of 915,436,865,540 is 621149580.
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.
915 x 436 x 865 x 540 = 186344874000
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.
915 : 1, 3, 5, 15, 61, 183, 305, 915
436 : 1, 2, 4, 109, 218, 436
865 : 1, 5, 173, 865
540 : 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 915,436,865,540, is 1.
Now, the common factors can be found like this.
915:3x 5x 61
436:2x 2x 109
865:5x 173
540:2x 2x 3x 3x 3x 5
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 3x 5x 5 = 300
Therefore, the value for common factors is 300.
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 = 186344874000/(1x300)
LCM = 186344874000/300
LCM = 621149580
Thus, we can understand that the LCM of 915,436,865,540 is 621149580.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 915, 436, 865, 540
1. What is the LCM of 915, 436, 865, 540?
Answer: LCM of 915, 436, 865, 540 is 621149580.
2. How to calculate the LCM of 915, 436, 865, 540?
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 915, 436, 865, 540.
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}.