LCM of 646, 475, 221, 943
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 646, 475, 221, 943 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 646, 475, 221, 943. So, keep reading to learn more.
Given numbers are 646,475,221,943
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 646,475,221,943 is 197982850.
Find LCM of 646,475,221,943 with Prime Factorization
| 17 | 646, 475, 221, 943 |
| 19 | 38, 475, 13, 943 |
| 2, 25, 13, 943 |
Multiply the prime numbers at the bottom and the left side.
17 x 19 x 2 x 25 x 13 x 943 = 197982850
Therefore, the lowest common multiple of 646,475,221,943 is 197982850.
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.
646 x 475 x 221 x 943 = 63948460550
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.
646 : 1, 2, 17, 19, 34, 38, 323, 646
475 : 1, 5, 19, 25, 95, 475
221 : 1, 13, 17, 221
943 : 1, 23, 41, 943
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 646,475,221,943, is 1.
Now, the common factors can be found like this.
646:2x 17x 19
475:5x 5x 19
221:13x 17
943:23x 41
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
17x 19 = 323
Therefore, the value for common factors is 323.
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 = 63948460550/(1x323)
LCM = 63948460550/323
LCM = 197982850
Thus, we can understand that the LCM of 646,475,221,943 is 197982850.
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FAQs on LCM of 646, 475, 221, 943
1. What is the LCM of 646, 475, 221, 943?
Answer: LCM of 646, 475, 221, 943 is 197982850.
2. How to calculate the LCM of 646, 475, 221, 943?
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 646, 475, 221, 943.
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}.