LCM of 612, 654, 220, 990, 861
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 612, 654, 220, 990, 861 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 612, 654, 220, 990, 861. So, keep reading to learn more.
Given numbers are 612,654,220,990,861
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 612,654,220,990,861 is 1052985780.
Find LCM of 612,654,220,990,861 with Prime Factorization
| 2 | 612, 654, 220, 990, 861 |
| 2 | 306, 327, 110, 495, 861 |
| 3 | 153, 327, 55, 495, 861 |
| 3 | 51, 109, 55, 165, 287 |
| 5 | 17, 109, 55, 55, 287 |
| 11 | 17, 109, 11, 11, 287 |
| 17, 109, 1, 1, 287 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 3 x 5 x 11 x 17 x 109 x 1 x 1 x 287 = 1052985780
Therefore, the lowest common multiple of 612,654,220,990,861 is 1052985780.
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.
612 x 654 x 220 x 990 x 861 = 75056826398400
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.
612 : 1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 102, 153, 204, 306, 612
654 : 1, 2, 3, 6, 109, 218, 327, 654
220 : 1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220
990 : 1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990
861 : 1, 3, 7, 21, 41, 123, 287, 861
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 612,654,220,990,861, is 1.
Now, the common factors can be found like this.
612:2x 2x 3x 3x 17
654:2x 3x 109
220:2x 2x 5x 11
990:2x 3x 3x 5x 11
861:3x 7x 41
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 2x 2x 3x 3x 3x 3x 5x 11 = 71280
Therefore, the value for common factors is 71280.
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 = 75056826398400/(1x71280)
LCM = 75056826398400/71280
LCM = 1052985780
Thus, we can understand that the LCM of 612,654,220,990,861 is 1052985780.
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FAQs on LCM of 612, 654, 220, 990, 861
1. What is the LCM of 612, 654, 220, 990, 861?
Answer: LCM of 612, 654, 220, 990, 861 is 1052985780.
2. How to calculate the LCM of 612, 654, 220, 990, 861?
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 612, 654, 220, 990, 861.
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}.