LCM of 805, 528, 391, 605
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 805, 528, 391, 605 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 805, 528, 391, 605. So, keep reading to learn more.
Given numbers are 805,528,391,605
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 805,528,391,605 is 79482480.
Find LCM of 805,528,391,605 with Prime Factorization
| 5 | 805, 528, 391, 605 |
| 11 | 161, 528, 391, 121 |
| 23 | 161, 48, 391, 11 |
| 7, 48, 17, 11 |
Multiply the prime numbers at the bottom and the left side.
5 x 11 x 23 x 7 x 48 x 17 x 11 = 79482480
Therefore, the lowest common multiple of 805,528,391,605 is 79482480.
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.
805 x 528 x 391 x 605 = 100545337200
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.
805 : 1, 5, 7, 23, 35, 115, 161, 805
528 : 1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 66, 88, 132, 176, 264, 528
391 : 1, 17, 23, 391
605 : 1, 5, 11, 55, 121, 605
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 805,528,391,605, is 1.
Now, the common factors can be found like this.
805:5x 7x 23
528:2x 2x 2x 2x 3x 11
391:17x 23
605:5x 11x 11
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
5x 11x 23 = 1265
Therefore, the value for common factors is 1265.
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 = 100545337200/(1x1265)
LCM = 100545337200/1265
LCM = 79482480
Thus, we can understand that the LCM of 805,528,391,605 is 79482480.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 805, 528, 391, 605
1. What is the LCM of 805, 528, 391, 605?
Answer: LCM of 805, 528, 391, 605 is 79482480.
2. How to calculate the LCM of 805, 528, 391, 605?
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 805, 528, 391, 605.
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}.