LCM of 247, 644, 931, 681
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 247, 644, 931, 681 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 247, 644, 931, 681. So, keep reading to learn more.
Given numbers are 247,644,931,681
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 247,644,931,681 is 758277156.
Find LCM of 247,644,931,681 with Prime Factorization
| 7 | 247, 644, 931, 681 |
| 19 | 247, 92, 133, 681 |
| 13, 92, 7, 681 |
Multiply the prime numbers at the bottom and the left side.
7 x 19 x 13 x 92 x 7 x 681 = 758277156
Therefore, the lowest common multiple of 247,644,931,681 is 758277156.
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.
247 x 644 x 931 x 681 = 100850861748
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.
247 : 1, 13, 19, 247
644 : 1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644
931 : 1, 7, 19, 49, 133, 931
681 : 1, 3, 227, 681
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 247,644,931,681, is 1.
Now, the common factors can be found like this.
247:13x 19
644:2x 2x 7x 23
931:7x 7x 19
681:3x 227
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
7x 19 = 133
Therefore, the value for common factors is 133.
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 = 100850861748/(1x133)
LCM = 100850861748/133
LCM = 758277156
Thus, we can understand that the LCM of 247,644,931,681 is 758277156.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 247, 644, 931, 681
1. What is the LCM of 247, 644, 931, 681?
Answer: LCM of 247, 644, 931, 681 is 758277156.
2. How to calculate the LCM of 247, 644, 931, 681?
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 247, 644, 931, 681.
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}.