LCM of 780, 421, 990, 865, 611
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 780, 421, 990, 865, 611 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 780, 421, 990, 865, 611. So, keep reading to learn more.
Given numbers are 780,421,990,865,611
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 780,421,990,865,611 is 88111906740.
Find LCM of 780,421,990,865,611 with Prime Factorization
| 2 | 780, 421, 990, 865, 611 |
| 3 | 390, 421, 495, 865, 611 |
| 5 | 130, 421, 165, 865, 611 |
| 13 | 26, 421, 33, 173, 611 |
| 2, 421, 33, 173, 47 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 5 x 13 x 2 x 421 x 33 x 173 x 47 = 88111906740
Therefore, the lowest common multiple of 780,421,990,865,611 is 88111906740.
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.
780 x 421 x 990 x 865 x 611 = 171818218143000
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.
780 : 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780
421 : 1, 421
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
865 : 1, 5, 173, 865
611 : 1, 13, 47, 611
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 780,421,990,865,611, is 1.
Now, the common factors can be found like this.
780:2x 2x 3x 5x 13
421:421
990:2x 3x 3x 5x 11
865:5x 173
611:13x 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 3x 5x 5x 13 = 1950
Therefore, the value for common factors is 1950.
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 = 171818218143000/(1x1950)
LCM = 171818218143000/1950
LCM = 88111906740
Thus, we can understand that the LCM of 780,421,990,865,611 is 88111906740.
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FAQs on LCM of 780, 421, 990, 865, 611
1. What is the LCM of 780, 421, 990, 865, 611?
Answer: LCM of 780, 421, 990, 865, 611 is 88111906740.
2. How to calculate the LCM of 780, 421, 990, 865, 611?
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 780, 421, 990, 865, 611.
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}.