LCM of 698, 838, 430, 645
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 698, 838, 430, 645 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 698, 838, 430, 645. So, keep reading to learn more.
Given numbers are 698,838,430,645
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 698,838,430,645 is 188637990.
Find LCM of 698,838,430,645 with Prime Factorization
| 2 | 698, 838, 430, 645 |
| 5 | 349, 419, 215, 645 |
| 43 | 349, 419, 43, 129 |
| 349, 419, 1, 3 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 43 x 349 x 419 x 1 x 3 = 188637990
Therefore, the lowest common multiple of 698,838,430,645 is 188637990.
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.
698 x 838 x 430 x 645 = 162228671400
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.
698 : 1, 2, 349, 698
838 : 1, 2, 419, 838
430 : 1, 2, 5, 10, 43, 86, 215, 430
645 : 1, 3, 5, 15, 43, 129, 215, 645
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 698,838,430,645, is 1.
Now, the common factors can be found like this.
698:2x 349
838:2x 419
430:2x 5x 43
645:3x 5x 43
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 5x 43 = 860
Therefore, the value for common factors is 860.
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 = 162228671400/(1x860)
LCM = 162228671400/860
LCM = 188637990
Thus, we can understand that the LCM of 698,838,430,645 is 188637990.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 698, 838, 430, 645
1. What is the LCM of 698, 838, 430, 645?
Answer: LCM of 698, 838, 430, 645 is 188637990.
2. How to calculate the LCM of 698, 838, 430, 645?
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 698, 838, 430, 645.
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}.