Find the LCM of 642, 805, 764, 978, 476 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 642, 805, 764, 978, 476. So, keep reading to learn more.
Given numbers are 642,805,764,978,476
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 642,805,764,978,476 is 547054754820.
Find LCM of 642,805,764,978,476 with Prime Factorization
2 | 642, 805, 764, 978, 476 |
2 | 321, 805, 382, 489, 238 |
3 | 321, 805, 191, 489, 119 |
7 | 107, 805, 191, 163, 119 |
107, 115, 191, 163, 17 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 7 x 107 x 115 x 191 x 163 x 17 = 547054754820
Therefore, the lowest common multiple of 642,805,764,978,476 is 547054754820.
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.
642 x 805 x 764 x 978 x 476 = 183810397619520
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.
642 : 1, 2, 3, 6, 107, 214, 321, 642
805 : 1, 5, 7, 23, 35, 115, 161, 805
764 : 1, 2, 4, 191, 382, 764
978 : 1, 2, 3, 6, 163, 326, 489, 978
476 : 1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 642,805,764,978,476, is 1.
Now, the common factors can be found like this.
642:2x 3x 107
805:5x 7x 23
764:2x 2x 191
978:2x 3x 163
476:2x 2x 7x 17
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 3x 7 = 336
Therefore, the value for common factors is 336.
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 = 183810397619520/(1x336)
LCM = 183810397619520/336
LCM = 547054754820
Thus, we can understand that the LCM of 642,805,764,978,476 is 547054754820.
Here are some samples of LCM of two or more Numbers calculations.
1. What is the LCM of 642, 805, 764, 978, 476?
Answer: LCM of 642, 805, 764, 978, 476 is 547054754820.
2. How to calculate the LCM of 642, 805, 764, 978, 476?
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 642, 805, 764, 978, 476.
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}.