LCM of 715, 697, 989, 858
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 715, 697, 989, 858 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 715, 697, 989, 858. So, keep reading to learn more.
Given numbers are 715,697,989,858
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 715,697,989,858 is 2957238570.
Find LCM of 715,697,989,858 with Prime Factorization
| 11 | 715, 697, 989, 858 |
| 13 | 65, 697, 989, 78 |
| 5, 697, 989, 6 |
Multiply the prime numbers at the bottom and the left side.
11 x 13 x 5 x 697 x 989 x 6 = 2957238570
Therefore, the lowest common multiple of 715,697,989,858 is 2957238570.
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.
715 x 697 x 989 x 858 = 422885115510
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.
715 : 1, 5, 11, 13, 55, 65, 143, 715
697 : 1, 17, 41, 697
989 : 1, 23, 43, 989
858 : 1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 143, 286, 429, 858
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 715,697,989,858, is 1.
Now, the common factors can be found like this.
715:5x 11x 13
697:17x 41
989:23x 43
858:2x 3x 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.
11x 13 = 143
Therefore, the value for common factors is 143.
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 = 422885115510/(1x143)
LCM = 422885115510/143
LCM = 2957238570
Thus, we can understand that the LCM of 715,697,989,858 is 2957238570.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 715, 697, 989, 858
1. What is the LCM of 715, 697, 989, 858?
Answer: LCM of 715, 697, 989, 858 is 2957238570.
2. How to calculate the LCM of 715, 697, 989, 858?
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 715, 697, 989, 858.
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}.