Find the LCM of 645, 693, 985, 617, 686 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 645, 693, 985, 617, 686. So, keep reading to learn more.
Given numbers are 645,693,985,617,686
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 645,693,985,617,686 is 1774798938990.
Find LCM of 645,693,985,617,686 with Prime Factorization
3 | 645, 693, 985, 617, 686 |
5 | 215, 231, 985, 617, 686 |
7 | 43, 231, 197, 617, 686 |
43, 33, 197, 617, 98 |
Multiply the prime numbers at the bottom and the left side.
3 x 5 x 7 x 43 x 33 x 197 x 617 x 98 = 1774798938990
Therefore, the lowest common multiple of 645,693,985,617,686 is 1774798938990.
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.
645 x 693 x 985 x 617 x 686 = 186353888593950
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.
645 : 1, 3, 5, 15, 43, 129, 215, 645
693 : 1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693
985 : 1, 5, 197, 985
617 : 1, 617
686 : 1, 2, 7, 14, 49, 98, 343, 686
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 645,693,985,617,686, is 1.
Now, the common factors can be found like this.
645:3x 5x 43
693:3x 3x 7x 11
985:5x 197
617:617
686:2x 7x 7x 7
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 5x 7 = 105
Therefore, the value for common factors is 105.
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 = 186353888593950/(1x105)
LCM = 186353888593950/105
LCM = 1774798938990
Thus, we can understand that the LCM of 645,693,985,617,686 is 1774798938990.
Here are some samples of LCM of two or more Numbers calculations.
1. What is the LCM of 645, 693, 985, 617, 686?
Answer: LCM of 645, 693, 985, 617, 686 is 1774798938990.
2. How to calculate the LCM of 645, 693, 985, 617, 686?
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 645, 693, 985, 617, 686.
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}.