LCM of 799, 978, 656, 423
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 799, 978, 656, 423 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 799, 978, 656, 423. So, keep reading to learn more.
Given numbers are 799,978,656,423
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 799,978,656,423 is 768919248.
Find LCM of 799,978,656,423 with Prime Factorization
| 2 | 799, 978, 656, 423 |
| 3 | 799, 489, 328, 423 |
| 47 | 799, 163, 328, 141 |
| 17, 163, 328, 3 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 47 x 17 x 163 x 328 x 3 = 768919248
Therefore, the lowest common multiple of 799,978,656,423 is 768919248.
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.
799 x 978 x 656 x 423 = 216835227936
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.
799 : 1, 17, 47, 799
978 : 1, 2, 3, 6, 163, 326, 489, 978
656 : 1, 2, 4, 8, 16, 41, 82, 164, 328, 656
423 : 1, 3, 9, 47, 141, 423
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 799,978,656,423, is 1.
Now, the common factors can be found like this.
799:17x 47
978:2x 3x 163
656:2x 2x 2x 2x 41
423:3x 3x 47
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 47 = 282
Therefore, the value for common factors is 282.
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 = 216835227936/(1x282)
LCM = 216835227936/282
LCM = 768919248
Thus, we can understand that the LCM of 799,978,656,423 is 768919248.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 799, 978, 656, 423
1. What is the LCM of 799, 978, 656, 423?
Answer: LCM of 799, 978, 656, 423 is 768919248.
2. How to calculate the LCM of 799, 978, 656, 423?
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 799, 978, 656, 423.
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}.