LCM of 943, 921, 721, 656, 381
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 943, 921, 721, 656, 381 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 943, 921, 721, 656, 381. So, keep reading to learn more.
Given numbers are 943,921,721,656,381
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 943,921,721,656,381 is 1272419427216.
Find LCM of 943,921,721,656,381 with Prime Factorization
| 3 | 943, 921, 721, 656, 381 |
| 41 | 943, 307, 721, 656, 127 |
| 23, 307, 721, 16, 127 |
Multiply the prime numbers at the bottom and the left side.
3 x 41 x 23 x 307 x 721 x 16 x 127 = 1272419427216
Therefore, the lowest common multiple of 943,921,721,656,381 is 1272419427216.
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.
943 x 921 x 721 x 656 x 381 = 156507589547568
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.
943 : 1, 23, 41, 943
921 : 1, 3, 307, 921
721 : 1, 7, 103, 721
656 : 1, 2, 4, 8, 16, 41, 82, 164, 328, 656
381 : 1, 3, 127, 381
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 943,921,721,656,381, is 1.
Now, the common factors can be found like this.
943:23x 41
921:3x 307
721:7x 103
656:2x 2x 2x 2x 41
381:3x 127
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 41 = 123
Therefore, the value for common factors is 123.
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 = 156507589547568/(1x123)
LCM = 156507589547568/123
LCM = 1272419427216
Thus, we can understand that the LCM of 943,921,721,656,381 is 1272419427216.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 943, 921, 721, 656, 381
1. What is the LCM of 943, 921, 721, 656, 381?
Answer: LCM of 943, 921, 721, 656, 381 is 1272419427216.
2. How to calculate the LCM of 943, 921, 721, 656, 381?
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 943, 921, 721, 656, 381.
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}.