LCM of 715, 130, 247, 690
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 715, 130, 247, 690 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, 130, 247, 690. So, keep reading to learn more.
Given numbers are 715,130,247,690
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 715,130,247,690 is 1874730.
Find LCM of 715,130,247,690 with Prime Factorization
| 2 | 715, 130, 247, 690 |
| 5 | 715, 65, 247, 345 |
| 13 | 143, 13, 247, 69 |
| 11, 1, 19, 69 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 13 x 11 x 1 x 19 x 69 = 1874730
Therefore, the lowest common multiple of 715,130,247,690 is 1874730.
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 130 x 247 x 690 = 15841468500
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
130 : 1, 2, 5, 10, 13, 26, 65, 130
247 : 1, 13, 19, 247
690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 715,130,247,690, is 1.
Now, the common factors can be found like this.
715:5x 11x 13
130:2x 5x 13
247:13x 19
690:2x 3x 5x 23
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 5x 5x 13x 13 = 8450
Therefore, the value for common factors is 8450.
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 = 15841468500/(1x8450)
LCM = 15841468500/8450
LCM = 1874730
Thus, we can understand that the LCM of 715,130,247,690 is 1874730.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 715, 130, 247, 690
1. What is the LCM of 715, 130, 247, 690?
Answer: LCM of 715, 130, 247, 690 is 1874730.
2. How to calculate the LCM of 715, 130, 247, 690?
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, 130, 247, 690.
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}.