LCM of 688, 781, 828, 180, 189
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 688, 781, 828, 180, 189 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 688, 781, 828, 180, 189. So, keep reading to learn more.
Given numbers are 688,781,828,180,189
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 688,781,828,180,189 is 11678824080.
Find LCM of 688,781,828,180,189 with Prime Factorization
| 2 | 688, 781, 828, 180, 189 |
| 2 | 344, 781, 414, 90, 189 |
| 3 | 172, 781, 207, 45, 189 |
| 3 | 172, 781, 69, 15, 63 |
| 172, 781, 23, 5, 21 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 3 x 172 x 781 x 23 x 5 x 21 = 11678824080
Therefore, the lowest common multiple of 688,781,828,180,189 is 11678824080.
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.
688 x 781 x 828 x 180 x 189 = 15135756007680
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.
688 : 1, 2, 4, 8, 16, 43, 86, 172, 344, 688
781 : 1, 11, 71, 781
828 : 1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 207, 276, 414, 828
180 : 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180
189 : 1, 3, 7, 9, 21, 27, 63, 189
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 688,781,828,180,189, is 1.
Now, the common factors can be found like this.
688:2x 2x 2x 2x 43
781:11x 71
828:2x 2x 3x 3x 23
180:2x 2x 3x 3x 5
189:3x 3x 3x 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 2x 3x 3x 3x 3 = 1296
Therefore, the value for common factors is 1296.
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 = 15135756007680/(1x1296)
LCM = 15135756007680/1296
LCM = 11678824080
Thus, we can understand that the LCM of 688,781,828,180,189 is 11678824080.
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FAQs on LCM of 688, 781, 828, 180, 189
1. What is the LCM of 688, 781, 828, 180, 189?
Answer: LCM of 688, 781, 828, 180, 189 is 11678824080.
2. How to calculate the LCM of 688, 781, 828, 180, 189?
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 688, 781, 828, 180, 189.
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}.