LCM of 186, 172, 644, 721
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 186, 172, 644, 721 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 186, 172, 644, 721. So, keep reading to learn more.
Given numbers are 186,172,644,721
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 186,172,644,721 is 265261668.
Find LCM of 186,172,644,721 with Prime Factorization
| 2 | 186, 172, 644, 721 |
| 2 | 93, 86, 322, 721 |
| 7 | 93, 43, 161, 721 |
| 93, 43, 23, 103 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 7 x 93 x 43 x 23 x 103 = 265261668
Therefore, the lowest common multiple of 186,172,644,721 is 265261668.
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.
186 x 172 x 644 x 721 = 14854653408
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.
186 : 1, 2, 3, 6, 31, 62, 93, 186
172 : 1, 2, 4, 43, 86, 172
644 : 1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644
721 : 1, 7, 103, 721
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 186,172,644,721, is 1.
Now, the common factors can be found like this.
186:2x 3x 31
172:2x 2x 43
644:2x 2x 7x 23
721:7x 103
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 7 = 56
Therefore, the value for common factors is 56.
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 = 14854653408/(1x56)
LCM = 14854653408/56
LCM = 265261668
Thus, we can understand that the LCM of 186,172,644,721 is 265261668.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 186, 172, 644, 721
1. What is the LCM of 186, 172, 644, 721?
Answer: LCM of 186, 172, 644, 721 is 265261668.
2. How to calculate the LCM of 186, 172, 644, 721?
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 186, 172, 644, 721.
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}.