LCM of 436, 635, 168, 490
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 436, 635, 168, 490 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 436, 635, 168, 490. So, keep reading to learn more.
Given numbers are 436,635,168,490
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 436,635,168,490 is 81396840.
Find LCM of 436,635,168,490 with Prime Factorization
| 2 | 436, 635, 168, 490 |
| 2 | 218, 635, 84, 245 |
| 5 | 109, 635, 42, 245 |
| 7 | 109, 127, 42, 49 |
| 109, 127, 6, 7 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 5 x 7 x 109 x 127 x 6 x 7 = 81396840
Therefore, the lowest common multiple of 436,635,168,490 is 81396840.
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.
436 x 635 x 168 x 490 = 22791115200
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.
436 : 1, 2, 4, 109, 218, 436
635 : 1, 5, 127, 635
168 : 1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168
490 : 1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 436,635,168,490, is 1.
Now, the common factors can be found like this.
436:2x 2x 109
635:5x 127
168:2x 2x 2x 3x 7
490:2x 5x 7x 7
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 7 = 280
Therefore, the value for common factors is 280.
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 = 22791115200/(1x280)
LCM = 22791115200/280
LCM = 81396840
Thus, we can understand that the LCM of 436,635,168,490 is 81396840.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 436, 635, 168, 490
1. What is the LCM of 436, 635, 168, 490?
Answer: LCM of 436, 635, 168, 490 is 81396840.
2. How to calculate the LCM of 436, 635, 168, 490?
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 436, 635, 168, 490.
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}.