LCM of 861, 770, 865, 804
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 861, 770, 865, 804 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 861, 770, 865, 804. So, keep reading to learn more.
Given numbers are 861,770,865,804
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 861,770,865,804 is 2195567220.
Find LCM of 861,770,865,804 with Prime Factorization
| 2 | 861, 770, 865, 804 |
| 3 | 861, 385, 865, 402 |
| 5 | 287, 385, 865, 134 |
| 7 | 287, 77, 173, 134 |
| 41, 11, 173, 134 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 5 x 7 x 41 x 11 x 173 x 134 = 2195567220
Therefore, the lowest common multiple of 861,770,865,804 is 2195567220.
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.
861 x 770 x 865 x 804 = 461069116200
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.
861 : 1, 3, 7, 21, 41, 123, 287, 861
770 : 1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770
865 : 1, 5, 173, 865
804 : 1, 2, 3, 4, 6, 12, 67, 134, 201, 268, 402, 804
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 861,770,865,804, is 1.
Now, the common factors can be found like this.
861:3x 7x 41
770:2x 5x 7x 11
865:5x 173
804:2x 2x 3x 67
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 5x 7 = 210
Therefore, the value for common factors is 210.
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 = 461069116200/(1x210)
LCM = 461069116200/210
LCM = 2195567220
Thus, we can understand that the LCM of 861,770,865,804 is 2195567220.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 861, 770, 865, 804
1. What is the LCM of 861, 770, 865, 804?
Answer: LCM of 861, 770, 865, 804 is 2195567220.
2. How to calculate the LCM of 861, 770, 865, 804?
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 861, 770, 865, 804.
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}.