LCM of 494, 890, 689, 715
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 494, 890, 689, 715 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 494, 890, 689, 715. So, keep reading to learn more.
Given numbers are 494,890,689,715
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 494,890,689,715 is 128160890.
Find LCM of 494,890,689,715 with Prime Factorization
| 2 | 494, 890, 689, 715 |
| 5 | 247, 445, 689, 715 |
| 13 | 247, 89, 689, 143 |
| 19, 89, 53, 11 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 13 x 19 x 89 x 53 x 11 = 128160890
Therefore, the lowest common multiple of 494,890,689,715 is 128160890.
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.
494 x 890 x 689 x 715 = 216591904100
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.
494 : 1, 2, 13, 19, 26, 38, 247, 494
890 : 1, 2, 5, 10, 89, 178, 445, 890
689 : 1, 13, 53, 689
715 : 1, 5, 11, 13, 55, 65, 143, 715
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 494,890,689,715, is 1.
Now, the common factors can be found like this.
494:2x 13x 19
890:2x 5x 89
689:13x 53
715:5x 11x 13
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 5x 13x 13 = 1690
Therefore, the value for common factors is 1690.
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 = 216591904100/(1x1690)
LCM = 216591904100/1690
LCM = 128160890
Thus, we can understand that the LCM of 494,890,689,715 is 128160890.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 494, 890, 689, 715
1. What is the LCM of 494, 890, 689, 715?
Answer: LCM of 494, 890, 689, 715 is 128160890.
2. How to calculate the LCM of 494, 890, 689, 715?
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 494, 890, 689, 715.
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}.