LCM of 690, 299, 805, 985
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 690, 299, 805, 985 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 690, 299, 805, 985. So, keep reading to learn more.
Given numbers are 690,299,805,985
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 690,299,805,985 is 12369630.
Find LCM of 690,299,805,985 with Prime Factorization
| 5 | 690, 299, 805, 985 |
| 23 | 138, 299, 161, 197 |
| 6, 13, 7, 197 |
Multiply the prime numbers at the bottom and the left side.
5 x 23 x 6 x 13 x 7 x 197 = 12369630
Therefore, the lowest common multiple of 690,299,805,985 is 12369630.
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.
690 x 299 x 805 x 985 = 163588356750
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.
690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
299 : 1, 13, 23, 299
805 : 1, 5, 7, 23, 35, 115, 161, 805
985 : 1, 5, 197, 985
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 690,299,805,985, is 1.
Now, the common factors can be found like this.
690:2x 3x 5x 23
299:13x 23
805:5x 7x 23
985:5x 197
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
5x 5x 23x 23 = 13225
Therefore, the value for common factors is 13225.
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 = 163588356750/(1x13225)
LCM = 163588356750/13225
LCM = 12369630
Thus, we can understand that the LCM of 690,299,805,985 is 12369630.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 690, 299, 805, 985
1. What is the LCM of 690, 299, 805, 985?
Answer: LCM of 690, 299, 805, 985 is 12369630.
2. How to calculate the LCM of 690, 299, 805, 985?
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 690, 299, 805, 985.
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}.