LCM of 782, 805, 962, 717, 438
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 782, 805, 962, 717, 438 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 782, 805, 962, 717, 438. So, keep reading to learn more.
Given numbers are 782,805,962,717,438
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 782,805,962,717,438 is 689067694770.
Find LCM of 782,805,962,717,438 with Prime Factorization
| 2 | 782, 805, 962, 717, 438 |
| 3 | 391, 805, 481, 717, 219 |
| 23 | 391, 805, 481, 239, 73 |
| 17, 35, 481, 239, 73 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 23 x 17 x 35 x 481 x 239 x 73 = 689067694770
Therefore, the lowest common multiple of 782,805,962,717,438 is 689067694770.
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.
782 x 805 x 962 x 717 x 438 = 190182683756520
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.
782 : 1, 2, 17, 23, 34, 46, 391, 782
805 : 1, 5, 7, 23, 35, 115, 161, 805
962 : 1, 2, 13, 26, 37, 74, 481, 962
717 : 1, 3, 239, 717
438 : 1, 2, 3, 6, 73, 146, 219, 438
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 782,805,962,717,438, is 1.
Now, the common factors can be found like this.
782:2x 17x 23
805:5x 7x 23
962:2x 13x 37
717:3x 239
438:2x 3x 73
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 23 = 276
Therefore, the value for common factors is 276.
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 = 190182683756520/(1x276)
LCM = 190182683756520/276
LCM = 689067694770
Thus, we can understand that the LCM of 782,805,962,717,438 is 689067694770.
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FAQs on LCM of 782, 805, 962, 717, 438
1. What is the LCM of 782, 805, 962, 717, 438?
Answer: LCM of 782, 805, 962, 717, 438 is 689067694770.
2. How to calculate the LCM of 782, 805, 962, 717, 438?
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 782, 805, 962, 717, 438.
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}.