LCM of 506, 420, 557, 749
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 506, 420, 557, 749 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 506, 420, 557, 749. So, keep reading to learn more.
Given numbers are 506,420,557,749
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 506,420,557,749 is 6332989740.
Find LCM of 506,420,557,749 with Prime Factorization
| 2 | 506, 420, 557, 749 |
| 7 | 253, 210, 557, 749 |
| 253, 30, 557, 107 |
Multiply the prime numbers at the bottom and the left side.
2 x 7 x 253 x 30 x 557 x 107 = 6332989740
Therefore, the lowest common multiple of 506,420,557,749 is 6332989740.
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.
506 x 420 x 557 x 749 = 88661856360
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.
506 : 1, 2, 11, 22, 23, 46, 253, 506
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
749 : 1, 7, 107, 749
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 506,420,557,749, is 1.
Now, the common factors can be found like this.
506:2x 11x 23
420:2x 2x 3x 5x 7
557:557
749:7x 107
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 7 = 14
Therefore, the value for common factors is 14.
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 = 88661856360/(1x14)
LCM = 88661856360/14
LCM = 6332989740
Thus, we can understand that the LCM of 506,420,557,749 is 6332989740.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 506, 420, 557, 749
1. What is the LCM of 506, 420, 557, 749?
Answer: LCM of 506, 420, 557, 749 is 6332989740.
2. How to calculate the LCM of 506, 420, 557, 749?
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 506, 420, 557, 749.
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}.