LCM of 171, 490, 658, 638, 705
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 171, 490, 658, 638, 705 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 171, 490, 658, 638, 705. So, keep reading to learn more.
Given numbers are 171,490,658,638,705
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 171,490,658,638,705 is 1256263470.
Find LCM of 171,490,658,638,705 with Prime Factorization
| 2 | 171, 490, 658, 638, 705 |
| 3 | 171, 245, 329, 319, 705 |
| 5 | 57, 245, 329, 319, 235 |
| 7 | 57, 49, 329, 319, 47 |
| 47 | 57, 7, 47, 319, 47 |
| 57, 7, 1, 319, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 5 x 7 x 47 x 57 x 7 x 1 x 319 x 1 = 1256263470
Therefore, the lowest common multiple of 171,490,658,638,705 is 1256263470.
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.
171 x 490 x 658 x 638 x 705 = 24798640897800
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.
171 : 1, 3, 9, 19, 57, 171
490 : 1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490
658 : 1, 2, 7, 14, 47, 94, 329, 658
638 : 1, 2, 11, 22, 29, 58, 319, 638
705 : 1, 3, 5, 15, 47, 141, 235, 705
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 171,490,658,638,705, is 1.
Now, the common factors can be found like this.
171:3x 3x 19
490:2x 5x 7x 7
658:2x 7x 47
638:2x 11x 29
705:3x 5x 47
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 5x 7x 47 = 19740
Therefore, the value for common factors is 19740.
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 = 24798640897800/(1x19740)
LCM = 24798640897800/19740
LCM = 1256263470
Thus, we can understand that the LCM of 171,490,658,638,705 is 1256263470.
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FAQs on LCM of 171, 490, 658, 638, 705
1. What is the LCM of 171, 490, 658, 638, 705?
Answer: LCM of 171, 490, 658, 638, 705 is 1256263470.
2. How to calculate the LCM of 171, 490, 658, 638, 705?
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 171, 490, 658, 638, 705.
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}.