LCM of 689, 648, 890, 985, 285
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 689, 648, 890, 985, 285 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 689, 648, 890, 985, 285. So, keep reading to learn more.
Given numbers are 689,648,890,985,285
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 689,648,890,985,285 is 743659389720.
Find LCM of 689,648,890,985,285 with Prime Factorization
| 2 | 689, 648, 890, 985, 285 |
| 3 | 689, 324, 445, 985, 285 |
| 5 | 689, 108, 445, 985, 95 |
| 689, 108, 89, 197, 19 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 5 x 689 x 108 x 89 x 197 x 19 = 743659389720
Therefore, the lowest common multiple of 689,648,890,985,285 is 743659389720.
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.
689 x 648 x 890 x 985 x 285 = 111548908458000
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.
689 : 1, 13, 53, 689
648 : 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648
890 : 1, 2, 5, 10, 89, 178, 445, 890
985 : 1, 5, 197, 985
285 : 1, 3, 5, 15, 19, 57, 95, 285
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 689,648,890,985,285, is 1.
Now, the common factors can be found like this.
689:13x 53
648:2x 2x 2x 3x 3x 3x 3
890:2x 5x 89
985:5x 197
285:3x 5x 19
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 5x 5 = 150
Therefore, the value for common factors is 150.
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 = 111548908458000/(1x150)
LCM = 111548908458000/150
LCM = 743659389720
Thus, we can understand that the LCM of 689,648,890,985,285 is 743659389720.
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FAQs on LCM of 689, 648, 890, 985, 285
1. What is the LCM of 689, 648, 890, 985, 285?
Answer: LCM of 689, 648, 890, 985, 285 is 743659389720.
2. How to calculate the LCM of 689, 648, 890, 985, 285?
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 689, 648, 890, 985, 285.
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}.