LCM of 678, 402, 180, 126, 689
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 678, 402, 180, 126, 689 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 678, 402, 180, 126, 689. So, keep reading to learn more.
Given numbers are 678,402,180,126,689
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 678,402,180,126,689 is 6572687940.
Find LCM of 678,402,180,126,689 with Prime Factorization
| 2 | 678, 402, 180, 126, 689 |
| 3 | 339, 201, 90, 63, 689 |
| 3 | 113, 67, 30, 21, 689 |
| 113, 67, 10, 7, 689 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 3 x 113 x 67 x 10 x 7 x 689 = 6572687940
Therefore, the lowest common multiple of 678,402,180,126,689 is 6572687940.
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.
678 x 402 x 180 x 126 x 689 = 4259101785120
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.
678 : 1, 2, 3, 6, 113, 226, 339, 678
402 : 1, 2, 3, 6, 67, 134, 201, 402
180 : 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180
126 : 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126
689 : 1, 13, 53, 689
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 678,402,180,126,689, is 1.
Now, the common factors can be found like this.
678:2x 3x 113
402:2x 3x 67
180:2x 2x 3x 3x 5
126:2x 3x 3x 7
689:13x 53
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 3x 3x 3x 3 = 648
Therefore, the value for common factors is 648.
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 = 4259101785120/(1x648)
LCM = 4259101785120/648
LCM = 6572687940
Thus, we can understand that the LCM of 678,402,180,126,689 is 6572687940.
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FAQs on LCM of 678, 402, 180, 126, 689
1. What is the LCM of 678, 402, 180, 126, 689?
Answer: LCM of 678, 402, 180, 126, 689 is 6572687940.
2. How to calculate the LCM of 678, 402, 180, 126, 689?
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 678, 402, 180, 126, 689.
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}.