LCM of 756, 820, 690, 257, 909
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 756, 820, 690, 257, 909 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 756, 820, 690, 257, 909. So, keep reading to learn more.
Given numbers are 756,820,690,257,909
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 756,820,690,257,909 is 92524764780.
Find LCM of 756,820,690,257,909 with Prime Factorization
| 2 | 756, 820, 690, 257, 909 |
| 2 | 378, 410, 345, 257, 909 |
| 3 | 189, 205, 345, 257, 909 |
| 3 | 63, 205, 115, 257, 303 |
| 5 | 21, 205, 115, 257, 101 |
| 21, 41, 23, 257, 101 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 3 x 5 x 21 x 41 x 23 x 257 x 101 = 92524764780
Therefore, the lowest common multiple of 756,820,690,257,909 is 92524764780.
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.
756 x 820 x 690 x 257 x 909 = 99926745962400
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.
756 : 1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756
820 : 1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820
690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
257 : 1, 257
909 : 1, 3, 9, 101, 303, 909
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 756,820,690,257,909, is 1.
Now, the common factors can be found like this.
756:2x 2x 3x 3x 3x 7
820:2x 2x 5x 41
690:2x 3x 5x 23
257:257
909:3x 3x 101
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 2x 2x 3x 3x 3x 5 = 1080
Therefore, the value for common factors is 1080.
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 = 99926745962400/(1x1080)
LCM = 99926745962400/1080
LCM = 92524764780
Thus, we can understand that the LCM of 756,820,690,257,909 is 92524764780.
LCM of two or more Numbers Calculation Examples
Here are some samples of LCM of two or more Numbers calculations.
FAQs on LCM of 756, 820, 690, 257, 909
1. What is the LCM of 756, 820, 690, 257, 909?
Answer: LCM of 756, 820, 690, 257, 909 is 92524764780.
2. How to calculate the LCM of 756, 820, 690, 257, 909?
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 756, 820, 690, 257, 909.
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}.