LCM of 665, 578, 115, 299, 690
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 665, 578, 115, 299, 690 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 665, 578, 115, 299, 690. So, keep reading to learn more.
Given numbers are 665,578,115,299,690
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 665,578,115,299,690 is 344779890.
Find LCM of 665,578,115,299,690 with Prime Factorization
| 2 | 665, 578, 115, 299, 690 |
| 5 | 665, 289, 115, 299, 345 |
| 23 | 133, 289, 23, 299, 69 |
| 133, 289, 1, 13, 3 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 23 x 133 x 289 x 1 x 13 x 3 = 344779890
Therefore, the lowest common multiple of 665,578,115,299,690 is 344779890.
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.
665 x 578 x 115 x 299 x 690 = 9119428090500
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.
665 : 1, 5, 7, 19, 35, 95, 133, 665
578 : 1, 2, 17, 34, 289, 578
115 : 1, 5, 23, 115
299 : 1, 13, 23, 299
690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 665,578,115,299,690, is 1.
Now, the common factors can be found like this.
665:5x 7x 19
578:2x 17x 17
115:5x 23
299:13x 23
690:2x 3x 5x 23
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 5x 5x 23x 23 = 26450
Therefore, the value for common factors is 26450.
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 = 9119428090500/(1x26450)
LCM = 9119428090500/26450
LCM = 344779890
Thus, we can understand that the LCM of 665,578,115,299,690 is 344779890.
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FAQs on LCM of 665, 578, 115, 299, 690
1. What is the LCM of 665, 578, 115, 299, 690?
Answer: LCM of 665, 578, 115, 299, 690 is 344779890.
2. How to calculate the LCM of 665, 578, 115, 299, 690?
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 665, 578, 115, 299, 690.
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}.