LCM of 751, 115, 690, 915
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 751, 115, 690, 915 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 751, 115, 690, 915. So, keep reading to learn more.
Given numbers are 751,115,690,915
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 751,115,690,915 is 31609590.
Find LCM of 751,115,690,915 with Prime Factorization
| 3 | 751, 115, 690, 915 |
| 5 | 751, 115, 230, 305 |
| 23 | 751, 23, 46, 61 |
| 751, 1, 2, 61 |
Multiply the prime numbers at the bottom and the left side.
3 x 5 x 23 x 751 x 1 x 2 x 61 = 31609590
Therefore, the lowest common multiple of 751,115,690,915 is 31609590.
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.
751 x 115 x 690 x 915 = 54526542750
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.
751 : 1, 751
115 : 1, 5, 23, 115
690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
915 : 1, 3, 5, 15, 61, 183, 305, 915
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 751,115,690,915, is 1.
Now, the common factors can be found like this.
751:751
115:5x 23
690:2x 3x 5x 23
915:3x 5x 61
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 5x 5x 23 = 1725
Therefore, the value for common factors is 1725.
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 = 54526542750/(1x1725)
LCM = 54526542750/1725
LCM = 31609590
Thus, we can understand that the LCM of 751,115,690,915 is 31609590.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 751, 115, 690, 915
1. What is the LCM of 751, 115, 690, 915?
Answer: LCM of 751, 115, 690, 915 is 31609590.
2. How to calculate the LCM of 751, 115, 690, 915?
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 751, 115, 690, 915.
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}.