LCM of 501, 749, 420, 665
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 501, 749, 420, 665 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 501, 749, 420, 665. So, keep reading to learn more.
Given numbers are 501,749,420,665
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 501,749,420,665 is 142594620.
Find LCM of 501,749,420,665 with Prime Factorization
| 3 | 501, 749, 420, 665 |
| 5 | 167, 749, 140, 665 |
| 7 | 167, 749, 28, 133 |
| 167, 107, 4, 19 |
Multiply the prime numbers at the bottom and the left side.
3 x 5 x 7 x 167 x 107 x 4 x 19 = 142594620
Therefore, the lowest common multiple of 501,749,420,665 is 142594620.
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.
501 x 749 x 420 x 665 = 104807045700
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.
501 : 1, 3, 167, 501
749 : 1, 7, 107, 749
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
665 : 1, 5, 7, 19, 35, 95, 133, 665
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 501,749,420,665, is 1.
Now, the common factors can be found like this.
501:3x 167
749:7x 107
420:2x 2x 3x 5x 7
665:5x 7x 19
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 5x 7x 7 = 735
Therefore, the value for common factors is 735.
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 = 104807045700/(1x735)
LCM = 104807045700/735
LCM = 142594620
Thus, we can understand that the LCM of 501,749,420,665 is 142594620.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 501, 749, 420, 665
1. What is the LCM of 501, 749, 420, 665?
Answer: LCM of 501, 749, 420, 665 is 142594620.
2. How to calculate the LCM of 501, 749, 420, 665?
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 501, 749, 420, 665.
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}.