LCM of 641, 685, 867, 578, 431
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 641, 685, 867, 578, 431 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 641, 685, 867, 578, 431. So, keep reading to learn more.
Given numbers are 641,685,867,578,431
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 641,685,867,578,431 is 328151931090.
Find LCM of 641,685,867,578,431 with Prime Factorization
| 17 | 641, 685, 867, 578, 431 |
| 17 | 641, 685, 51, 34, 431 |
| 641, 685, 3, 2, 431 |
Multiply the prime numbers at the bottom and the left side.
17 x 17 x 641 x 685 x 3 x 2 x 431 = 328151931090
Therefore, the lowest common multiple of 641,685,867,578,431 is 328151931090.
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.
641 x 685 x 867 x 578 x 431 = 94835908085010
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.
641 : 1, 641
685 : 1, 5, 137, 685
867 : 1, 3, 17, 51, 289, 867
578 : 1, 2, 17, 34, 289, 578
431 : 1, 431
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 641,685,867,578,431, is 1.
Now, the common factors can be found like this.
641:641
685:5x 137
867:3x 17x 17
578:2x 17x 17
431:431
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
17x 17 = 289
Therefore, the value for common factors is 289.
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 = 94835908085010/(1x289)
LCM = 94835908085010/289
LCM = 328151931090
Thus, we can understand that the LCM of 641,685,867,578,431 is 328151931090.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 641, 685, 867, 578, 431
1. What is the LCM of 641, 685, 867, 578, 431?
Answer: LCM of 641, 685, 867, 578, 431 is 328151931090.
2. How to calculate the LCM of 641, 685, 867, 578, 431?
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 641, 685, 867, 578, 431.
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}.