Find the LCM of 308, 865, 690, 715 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 308, 865, 690, 715. So, keep reading to learn more.
Given numbers are 308,865,690,715
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 308,865,690,715 is 238978740.
Find LCM of 308,865,690,715 with Prime Factorization
2 | 308, 865, 690, 715 |
5 | 154, 865, 345, 715 |
11 | 154, 173, 69, 143 |
14, 173, 69, 13 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 11 x 14 x 173 x 69 x 13 = 238978740
Therefore, the lowest common multiple of 308,865,690,715 is 238978740.
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.
308 x 865 x 690 x 715 = 131438307000
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.
308 : 1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308
865 : 1, 5, 173, 865
690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
715 : 1, 5, 11, 13, 55, 65, 143, 715
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 308,865,690,715, is 1.
Now, the common factors can be found like this.
308:2x 2x 7x 11
865:5x 173
690:2x 3x 5x 23
715:5x 11x 13
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 11 = 550
Therefore, the value for common factors is 550.
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 = 131438307000/(1x550)
LCM = 131438307000/550
LCM = 238978740
Thus, we can understand that the LCM of 308,865,690,715 is 238978740.
Here are some samples of LCM of two or more Numbers calculations.
1. What is the LCM of 308, 865, 690, 715?
Answer: LCM of 308, 865, 690, 715 is 238978740.
2. How to calculate the LCM of 308, 865, 690, 715?
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 308, 865, 690, 715.
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}.