LCM of 276, 508, 690, 821
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 276, 508, 690, 821 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 276, 508, 690, 821. So, keep reading to learn more.
Given numbers are 276,508,690,821
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 276,508,690,821 is 143888460.
Find LCM of 276,508,690,821 with Prime Factorization
| 2 | 276, 508, 690, 821 |
| 2 | 138, 254, 345, 821 |
| 3 | 69, 127, 345, 821 |
| 23 | 23, 127, 115, 821 |
| 1, 127, 5, 821 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 23 x 1 x 127 x 5 x 821 = 143888460
Therefore, the lowest common multiple of 276,508,690,821 is 143888460.
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.
276 x 508 x 690 x 821 = 79426429920
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.
276 : 1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138, 276
508 : 1, 2, 4, 127, 254, 508
690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
821 : 1, 821
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 276,508,690,821, is 1.
Now, the common factors can be found like this.
276:2x 2x 3x 23
508:2x 2x 127
690:2x 3x 5x 23
821:821
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 23 = 552
Therefore, the value for common factors is 552.
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 = 79426429920/(1x552)
LCM = 79426429920/552
LCM = 143888460
Thus, we can understand that the LCM of 276,508,690,821 is 143888460.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 276, 508, 690, 821
1. What is the LCM of 276, 508, 690, 821?
Answer: LCM of 276, 508, 690, 821 is 143888460.
2. How to calculate the LCM of 276, 508, 690, 821?
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 276, 508, 690, 821.
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}.