LCM of 443, 391, 780, 644, 401
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 443, 391, 780, 644, 401 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 443, 391, 780, 644, 401. So, keep reading to learn more.
Given numbers are 443,391,780,644,401
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 443,391,780,644,401 is 379242934980.
Find LCM of 443,391,780,644,401 with Prime Factorization
| 2 | 443, 391, 780, 644, 401 |
| 2 | 443, 391, 390, 322, 401 |
| 23 | 443, 391, 195, 161, 401 |
| 443, 17, 195, 7, 401 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 23 x 443 x 17 x 195 x 7 x 401 = 379242934980
Therefore, the lowest common multiple of 443,391,780,644,401 is 379242934980.
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.
443 x 391 x 780 x 644 x 401 = 34890350018160
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.
443 : 1, 443
391 : 1, 17, 23, 391
780 : 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780
644 : 1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644
401 : 1, 401
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 443,391,780,644,401, is 1.
Now, the common factors can be found like this.
443:443
391:17x 23
780:2x 2x 3x 5x 13
644:2x 2x 7x 23
401:401
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 23 = 92
Therefore, the value for common factors is 92.
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 = 34890350018160/(1x92)
LCM = 34890350018160/92
LCM = 379242934980
Thus, we can understand that the LCM of 443,391,780,644,401 is 379242934980.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 443, 391, 780, 644, 401
1. What is the LCM of 443, 391, 780, 644, 401?
Answer: LCM of 443, 391, 780, 644, 401 is 379242934980.
2. How to calculate the LCM of 443, 391, 780, 644, 401?
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 443, 391, 780, 644, 401.
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}.