LCM of 521, 420, 860, 430
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 521, 420, 860, 430 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 521, 420, 860, 430. So, keep reading to learn more.
Given numbers are 521,420,860,430
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 521,420,860,430 is 9409260.
Find LCM of 521,420,860,430 with Prime Factorization
| 2 | 521, 420, 860, 430 |
| 2 | 521, 210, 430, 215 |
| 5 | 521, 105, 215, 215 |
| 43 | 521, 21, 43, 43 |
| 521, 21, 1, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 5 x 43 x 521 x 21 x 1 x 1 = 9409260
Therefore, the lowest common multiple of 521,420,860,430 is 9409260.
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.
521 x 420 x 860 x 430 = 80919636000
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.
521 : 1, 521
420 : 1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420
860 : 1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860
430 : 1, 2, 5, 10, 43, 86, 215, 430
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 521,420,860,430, is 1.
Now, the common factors can be found like this.
521:521
420:2x 2x 3x 5x 7
860:2x 2x 5x 43
430:2x 5x 43
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 5x 5x 43 = 8600
Therefore, the value for common factors is 8600.
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 = 80919636000/(1x8600)
LCM = 80919636000/8600
LCM = 9409260
Thus, we can understand that the LCM of 521,420,860,430 is 9409260.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 521, 420, 860, 430
1. What is the LCM of 521, 420, 860, 430?
Answer: LCM of 521, 420, 860, 430 is 9409260.
2. How to calculate the LCM of 521, 420, 860, 430?
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 521, 420, 860, 430.
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}.