LCM of 7, 971, 351, 210
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 7, 971, 351, 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 7, 971, 351, 210. So, keep reading to learn more.
Given numbers are 7,971,351,210
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 7,971,351,210 is 23857470.
Find LCM of 7,971,351,210 with Prime Factorization
| 3 | 7, 971, 351, 210 |
| 7 | 7, 971, 117, 70 |
| 1, 971, 117, 10 |
Multiply the prime numbers at the bottom and the left side.
3 x 7 x 1 x 971 x 117 x 10 = 23857470
Therefore, the lowest common multiple of 7,971,351,210 is 23857470.
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.
7 x 971 x 351 x 210 = 501006870
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.
7 : 1, 7
971 : 1, 971
351 : 1, 3, 9, 13, 27, 39, 117, 351
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 7,971,351,210, is 1.
Now, the common factors can be found like this.
7:7
971:971
351:3x 3x 3x 13
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.
3x 7 = 21
Therefore, the value for common factors is 21.
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 = 501006870/(1x21)
LCM = 501006870/21
LCM = 23857470
Thus, we can understand that the LCM of 7,971,351,210 is 23857470.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 7, 971, 351, 210
1. What is the LCM of 7, 971, 351, 210?
Answer: LCM of 7, 971, 351, 210 is 23857470.
2. How to calculate the LCM of 7, 971, 351, 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 7, 971, 351, 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}.