LCM of 644, 130, 770, 523, 780
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 644, 130, 770, 523, 780 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 644, 130, 770, 523, 780. So, keep reading to learn more.
Given numbers are 644,130,770,523,780
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 644,130,770,523,780 is 722461740.
Find LCM of 644,130,770,523,780 with Prime Factorization
| 2 | 644, 130, 770, 523, 780 |
| 2 | 322, 65, 385, 523, 390 |
| 5 | 161, 65, 385, 523, 195 |
| 7 | 161, 13, 77, 523, 39 |
| 13 | 23, 13, 11, 523, 39 |
| 23, 1, 11, 523, 3 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 5 x 7 x 13 x 23 x 1 x 11 x 523 x 3 = 722461740
Therefore, the lowest common multiple of 644,130,770,523,780 is 722461740.
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.
644 x 130 x 770 x 523 x 780 = 26297607336000
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.
644 : 1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644
130 : 1, 2, 5, 10, 13, 26, 65, 130
770 : 1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770
523 : 1, 523
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
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 644,130,770,523,780, is 1.
Now, the common factors can be found like this.
644:2x 2x 7x 23
130:2x 5x 13
770:2x 5x 7x 11
523:523
780:2x 2x 3x 5x 13
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 5x 5x 7x 13 = 36400
Therefore, the value for common factors is 36400.
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 = 26297607336000/(1x36400)
LCM = 26297607336000/36400
LCM = 722461740
Thus, we can understand that the LCM of 644,130,770,523,780 is 722461740.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 644, 130, 770, 523, 780
1. What is the LCM of 644, 130, 770, 523, 780?
Answer: LCM of 644, 130, 770, 523, 780 is 722461740.
2. How to calculate the LCM of 644, 130, 770, 523, 780?
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 644, 130, 770, 523, 780.
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}.