LCM of 707, 646, 840, 813, 620
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 707, 646, 840, 813, 620 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 707, 646, 840, 813, 620. So, keep reading to learn more.
Given numbers are 707,646,840,813,620
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 707,646,840,813,620 is 230215291320.
Find LCM of 707,646,840,813,620 with Prime Factorization
| 2 | 707, 646, 840, 813, 620 |
| 2 | 707, 323, 420, 813, 310 |
| 3 | 707, 323, 210, 813, 155 |
| 5 | 707, 323, 70, 271, 155 |
| 7 | 707, 323, 14, 271, 31 |
| 101, 323, 2, 271, 31 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 5 x 7 x 101 x 323 x 2 x 271 x 31 = 230215291320
Therefore, the lowest common multiple of 707,646,840,813,620 is 230215291320.
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.
707 x 646 x 840 x 813 x 620 = 193380844708800
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.
707 : 1, 7, 101, 707
646 : 1, 2, 17, 19, 34, 38, 323, 646
840 : 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840
813 : 1, 3, 271, 813
620 : 1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 707,646,840,813,620, is 1.
Now, the common factors can be found like this.
707:7x 101
646:2x 17x 19
840:2x 2x 2x 3x 5x 7
813:3x 271
620:2x 2x 5x 31
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 3x 5x 7 = 840
Therefore, the value for common factors is 840.
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 = 193380844708800/(1x840)
LCM = 193380844708800/840
LCM = 230215291320
Thus, we can understand that the LCM of 707,646,840,813,620 is 230215291320.
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FAQs on LCM of 707, 646, 840, 813, 620
1. What is the LCM of 707, 646, 840, 813, 620?
Answer: LCM of 707, 646, 840, 813, 620 is 230215291320.
2. How to calculate the LCM of 707, 646, 840, 813, 620?
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 707, 646, 840, 813, 620.
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}.