LCM of 646, 931, 263, 126, 561
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 646, 931, 263, 126, 561 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 646, 931, 263, 126, 561. So, keep reading to learn more.
Given numbers are 646,931,263,126,561
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 646,931,263,126,561 is 824175198.
Find LCM of 646,931,263,126,561 with Prime Factorization
| 2 | 646, 931, 263, 126, 561 |
| 3 | 323, 931, 263, 63, 561 |
| 7 | 323, 931, 263, 21, 187 |
| 17 | 323, 133, 263, 3, 187 |
| 19 | 19, 133, 263, 3, 11 |
| 1, 7, 263, 3, 11 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 7 x 17 x 19 x 1 x 7 x 263 x 3 x 11 = 824175198
Therefore, the lowest common multiple of 646,931,263,126,561 is 824175198.
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.
646 x 931 x 263 x 126 x 561 = 11180760736068
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.
646 : 1, 2, 17, 19, 34, 38, 323, 646
931 : 1, 7, 19, 49, 133, 931
263 : 1, 263
126 : 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126
561 : 1, 3, 11, 17, 33, 51, 187, 561
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 646,931,263,126,561, is 1.
Now, the common factors can be found like this.
646:2x 17x 19
931:7x 7x 19
263:263
126:2x 3x 3x 7
561:3x 11x 17
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 3x 7x 17x 19 = 13566
Therefore, the value for common factors is 13566.
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 = 11180760736068/(1x13566)
LCM = 11180760736068/13566
LCM = 824175198
Thus, we can understand that the LCM of 646,931,263,126,561 is 824175198.
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FAQs on LCM of 646, 931, 263, 126, 561
1. What is the LCM of 646, 931, 263, 126, 561?
Answer: LCM of 646, 931, 263, 126, 561 is 824175198.
2. How to calculate the LCM of 646, 931, 263, 126, 561?
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 646, 931, 263, 126, 561.
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}.