LCM of 389, 428, 386, 624, 665
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 389, 428, 386, 624, 665 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 389, 428, 386, 624, 665. So, keep reading to learn more.
Given numbers are 389,428,386,624,665
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 389,428,386,624,665 is 3333472855440.
Find LCM of 389,428,386,624,665 with Prime Factorization
| 2 | 389, 428, 386, 624, 665 |
| 2 | 389, 214, 193, 312, 665 |
| 389, 107, 193, 156, 665 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 389 x 107 x 193 x 156 x 665 = 3333472855440
Therefore, the lowest common multiple of 389,428,386,624,665 is 3333472855440.
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.
389 x 428 x 386 x 624 x 665 = 26667782843520
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.
389 : 1, 389
428 : 1, 2, 4, 107, 214, 428
386 : 1, 2, 193, 386
624 : 1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 624
665 : 1, 5, 7, 19, 35, 95, 133, 665
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 389,428,386,624,665, is 1.
Now, the common factors can be found like this.
389:389
428:2x 2x 107
386:2x 193
624:2x 2x 2x 2x 3x 13
665:5x 7x 19
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 2 = 8
Therefore, the value for common factors is 8.
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 = 26667782843520/(1x8)
LCM = 26667782843520/8
LCM = 3333472855440
Thus, we can understand that the LCM of 389,428,386,624,665 is 3333472855440.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 389, 428, 386, 624, 665
1. What is the LCM of 389, 428, 386, 624, 665?
Answer: LCM of 389, 428, 386, 624, 665 is 3333472855440.
2. How to calculate the LCM of 389, 428, 386, 624, 665?
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 389, 428, 386, 624, 665.
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}.