LCM of 215, 385, 397, 143
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 215, 385, 397, 143 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 215, 385, 397, 143. So, keep reading to learn more.
Given numbers are 215,385,397,143
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 215,385,397,143 is 85440355.
Find LCM of 215,385,397,143 with Prime Factorization
| 5 | 215, 385, 397, 143 |
| 11 | 43, 77, 397, 143 |
| 43, 7, 397, 13 |
Multiply the prime numbers at the bottom and the left side.
5 x 11 x 43 x 7 x 397 x 13 = 85440355
Therefore, the lowest common multiple of 215,385,397,143 is 85440355.
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.
215 x 385 x 397 x 143 = 4699219525
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.
215 : 1, 5, 43, 215
385 : 1, 5, 7, 11, 35, 55, 77, 385
397 : 1, 397
143 : 1, 11, 13, 143
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 215,385,397,143, is 1.
Now, the common factors can be found like this.
215:5x 43
385:5x 7x 11
397:397
143:11x 13
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
5x 11 = 55
Therefore, the value for common factors is 55.
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 = 4699219525/(1x55)
LCM = 4699219525/55
LCM = 85440355
Thus, we can understand that the LCM of 215,385,397,143 is 85440355.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 215, 385, 397, 143
1. What is the LCM of 215, 385, 397, 143?
Answer: LCM of 215, 385, 397, 143 is 85440355.
2. How to calculate the LCM of 215, 385, 397, 143?
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 215, 385, 397, 143.
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}.