LCM of 520, 301, 420, 557, 491
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 520, 301, 420, 557, 491 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 520, 301, 420, 557, 491. So, keep reading to learn more.
Given numbers are 520,301,420,557,491
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 520,301,420,557,491 is 128418555720.
Find LCM of 520,301,420,557,491 with Prime Factorization
| 2 | 520, 301, 420, 557, 491 |
| 2 | 260, 301, 210, 557, 491 |
| 5 | 130, 301, 105, 557, 491 |
| 7 | 26, 301, 21, 557, 491 |
| 26, 43, 3, 557, 491 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 5 x 7 x 26 x 43 x 3 x 557 x 491 = 128418555720
Therefore, the lowest common multiple of 520,301,420,557,491 is 128418555720.
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.
520 x 301 x 420 x 557 x 491 = 17978597800800
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.
520 : 1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520
301 : 1, 7, 43, 301
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
557 : 1, 557
491 : 1, 491
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 520,301,420,557,491, is 1.
Now, the common factors can be found like this.
520:2x 2x 2x 5x 13
301:7x 43
420:2x 2x 3x 5x 7
557:557
491:491
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 5x 7 = 140
Therefore, the value for common factors is 140.
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 = 17978597800800/(1x140)
LCM = 17978597800800/140
LCM = 128418555720
Thus, we can understand that the LCM of 520,301,420,557,491 is 128418555720.
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FAQs on LCM of 520, 301, 420, 557, 491
1. What is the LCM of 520, 301, 420, 557, 491?
Answer: LCM of 520, 301, 420, 557, 491 is 128418555720.
2. How to calculate the LCM of 520, 301, 420, 557, 491?
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 520, 301, 420, 557, 491.
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}.