LCM of 710, 687, 661, 978
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 710, 687, 661, 978 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 710, 687, 661, 978. So, keep reading to learn more.
Given numbers are 710,687,661,978
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 710,687,661,978 is 52553803110.
Find LCM of 710,687,661,978 with Prime Factorization
| 2 | 710, 687, 661, 978 |
| 3 | 355, 687, 661, 489 |
| 355, 229, 661, 163 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 355 x 229 x 661 x 163 = 52553803110
Therefore, the lowest common multiple of 710,687,661,978 is 52553803110.
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.
710 x 687 x 661 x 978 = 315322818660
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.
710 : 1, 2, 5, 10, 71, 142, 355, 710
687 : 1, 3, 229, 687
661 : 1, 661
978 : 1, 2, 3, 6, 163, 326, 489, 978
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 710,687,661,978, is 1.
Now, the common factors can be found like this.
710:2x 5x 71
687:3x 229
661:661
978:2x 3x 163
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 3 = 6
Therefore, the value for common factors is 6.
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 = 315322818660/(1x6)
LCM = 315322818660/6
LCM = 52553803110
Thus, we can understand that the LCM of 710,687,661,978 is 52553803110.
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FAQs on LCM of 710, 687, 661, 978
1. What is the LCM of 710, 687, 661, 978?
Answer: LCM of 710, 687, 661, 978 is 52553803110.
2. How to calculate the LCM of 710, 687, 661, 978?
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 710, 687, 661, 978.
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}.