LCM of 972, 765, 918, 389
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 972, 765, 918, 389 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 972, 765, 918, 389. So, keep reading to learn more.
Given numbers are 972,765,918,389
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 972,765,918,389 is 32139180.
Find LCM of 972,765,918,389 with Prime Factorization
| 2 | 972, 765, 918, 389 |
| 3 | 486, 765, 459, 389 |
| 3 | 162, 255, 153, 389 |
| 3 | 54, 85, 51, 389 |
| 17 | 18, 85, 17, 389 |
| 18, 5, 1, 389 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 3 x 3 x 17 x 18 x 5 x 1 x 389 = 32139180
Therefore, the lowest common multiple of 972,765,918,389 is 32139180.
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.
972 x 765 x 918 x 389 = 265533905160
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.
972 : 1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 972
765 : 1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765
918 : 1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 102, 153, 306, 459, 918
389 : 1, 389
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 972,765,918,389, is 1.
Now, the common factors can be found like this.
972:2x 2x 3x 3x 3x 3x 3
765:3x 3x 5x 17
918:2x 3x 3x 3x 17
389:389
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 3x 3x 17 = 8262
Therefore, the value for common factors is 8262.
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 = 265533905160/(1x8262)
LCM = 265533905160/8262
LCM = 32139180
Thus, we can understand that the LCM of 972,765,918,389 is 32139180.
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FAQs on LCM of 972, 765, 918, 389
1. What is the LCM of 972, 765, 918, 389?
Answer: LCM of 972, 765, 918, 389 is 32139180.
2. How to calculate the LCM of 972, 765, 918, 389?
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 972, 765, 918, 389.
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}.