LCM of 491, 478, 972, 891
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 491, 478, 972, 891 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 491, 478, 972, 891. So, keep reading to learn more.
Given numbers are 491,478,972,891
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 491,478,972,891 is 1254695508.
Find LCM of 491,478,972,891 with Prime Factorization
| 2 | 491, 478, 972, 891 |
| 3 | 491, 239, 486, 891 |
| 3 | 491, 239, 162, 297 |
| 3 | 491, 239, 54, 99 |
| 3 | 491, 239, 18, 33 |
| 491, 239, 6, 11 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 3 x 3 x 3 x 491 x 239 x 6 x 11 = 1254695508
Therefore, the lowest common multiple of 491,478,972,891 is 1254695508.
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.
491 x 478 x 972 x 891 = 203260672296
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.
491 : 1, 491
478 : 1, 2, 239, 478
972 : 1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 972
891 : 1, 3, 9, 11, 27, 33, 81, 99, 297, 891
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 491,478,972,891, is 1.
Now, the common factors can be found like this.
491:491
478:2x 239
972:2x 2x 3x 3x 3x 3x 3
891:3x 3x 3x 3x 11
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 3x 3x 3x 3 = 162
Therefore, the value for common factors is 162.
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 = 203260672296/(1x162)
LCM = 203260672296/162
LCM = 1254695508
Thus, we can understand that the LCM of 491,478,972,891 is 1254695508.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 491, 478, 972, 891
1. What is the LCM of 491, 478, 972, 891?
Answer: LCM of 491, 478, 972, 891 is 1254695508.
2. How to calculate the LCM of 491, 478, 972, 891?
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 491, 478, 972, 891.
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}.