LCM of 928, 116, 921, 781
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 928, 116, 921, 781 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 928, 116, 921, 781. So, keep reading to learn more.
Given numbers are 928,116,921,781
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 928,116,921,781 is 667511328.
Find LCM of 928,116,921,781 with Prime Factorization
| 2 | 928, 116, 921, 781 |
| 2 | 464, 58, 921, 781 |
| 29 | 232, 29, 921, 781 |
| 8, 1, 921, 781 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 29 x 8 x 1 x 921 x 781 = 667511328
Therefore, the lowest common multiple of 928,116,921,781 is 667511328.
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.
928 x 116 x 921 x 781 = 77431314048
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.
928 : 1, 2, 4, 8, 16, 29, 32, 58, 116, 232, 464, 928
116 : 1, 2, 4, 29, 58, 116
921 : 1, 3, 307, 921
781 : 1, 11, 71, 781
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 928,116,921,781, is 1.
Now, the common factors can be found like this.
928:2x 2x 2x 2x 2x 29
116:2x 2x 29
921:3x 307
781:11x 71
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 29 = 116
Therefore, the value for common factors is 116.
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 = 77431314048/(1x116)
LCM = 77431314048/116
LCM = 667511328
Thus, we can understand that the LCM of 928,116,921,781 is 667511328.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 928, 116, 921, 781
1. What is the LCM of 928, 116, 921, 781?
Answer: LCM of 928, 116, 921, 781 is 667511328.
2. How to calculate the LCM of 928, 116, 921, 781?
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 928, 116, 921, 781.
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}.