LCM of 981, 765, 700, 210
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 981, 765, 700, 210 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 981, 765, 700, 210. So, keep reading to learn more.
Given numbers are 981,765,700,210
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 981,765,700,210 is 11673900.
Find LCM of 981,765,700,210 with Prime Factorization
| 2 | 981, 765, 700, 210 |
| 3 | 981, 765, 350, 105 |
| 3 | 327, 255, 350, 35 |
| 5 | 109, 85, 350, 35 |
| 7 | 109, 17, 70, 7 |
| 109, 17, 10, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 3 x 5 x 7 x 109 x 17 x 10 x 1 = 11673900
Therefore, the lowest common multiple of 981,765,700,210 is 11673900.
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.
981 x 765 x 700 x 210 = 110318355000
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.
981 : 1, 3, 9, 109, 327, 981
765 : 1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765
700 : 1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 700
210 : 1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 981,765,700,210, is 1.
Now, the common factors can be found like this.
981:3x 3x 109
765:3x 3x 5x 17
700:2x 2x 5x 5x 7
210:2x 3x 5x 7
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 3x 3x 3x 5x 5x 7 = 9450
Therefore, the value for common factors is 9450.
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 = 110318355000/(1x9450)
LCM = 110318355000/9450
LCM = 11673900
Thus, we can understand that the LCM of 981,765,700,210 is 11673900.
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FAQs on LCM of 981, 765, 700, 210
1. What is the LCM of 981, 765, 700, 210?
Answer: LCM of 981, 765, 700, 210 is 11673900.
2. How to calculate the LCM of 981, 765, 700, 210?
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 981, 765, 700, 210.
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}.