LCM of 702, 644, 558, 721
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 702, 644, 558, 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 702, 644, 558, 721. So, keep reading to learn more.
Given numbers are 702,644,558,721
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 702,644,558,721 is 721758492.
Find LCM of 702,644,558,721 with Prime Factorization
| 2 | 702, 644, 558, 721 |
| 3 | 351, 322, 279, 721 |
| 3 | 117, 322, 93, 721 |
| 7 | 39, 322, 31, 721 |
| 39, 46, 31, 103 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 3 x 7 x 39 x 46 x 31 x 103 = 721758492
Therefore, the lowest common multiple of 702,644,558,721 is 721758492.
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.
702 x 644 x 558 x 721 = 181883139984
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.
702 : 1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 117, 234, 351, 702
644 : 1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644
558 : 1, 2, 3, 6, 9, 18, 31, 62, 93, 186, 279, 558
721 : 1, 7, 103, 721
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 702,644,558,721, is 1.
Now, the common factors can be found like this.
702:2x 3x 3x 3x 13
644:2x 2x 7x 23
558:2x 3x 3x 31
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 3x 3x 7 = 252
Therefore, the value for common factors is 252.
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 = 181883139984/(1x252)
LCM = 181883139984/252
LCM = 721758492
Thus, we can understand that the LCM of 702,644,558,721 is 721758492.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 702, 644, 558, 721
1. What is the LCM of 702, 644, 558, 721?
Answer: LCM of 702, 644, 558, 721 is 721758492.
2. How to calculate the LCM of 702, 644, 558, 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 702, 644, 558, 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}.