LCM of 419, 161, 345, 690
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 419, 161, 345, 690 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 419, 161, 345, 690. So, keep reading to learn more.
Given numbers are 419,161,345,690
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 419,161,345,690 is 2023770.
Find LCM of 419,161,345,690 with Prime Factorization
| 3 | 419, 161, 345, 690 |
| 5 | 419, 161, 115, 230 |
| 23 | 419, 161, 23, 46 |
| 419, 7, 1, 2 |
Multiply the prime numbers at the bottom and the left side.
3 x 5 x 23 x 419 x 7 x 1 x 2 = 2023770
Therefore, the lowest common multiple of 419,161,345,690 is 2023770.
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.
419 x 161 x 345 x 690 = 16058614950
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.
419 : 1, 419
161 : 1, 7, 23, 161
345 : 1, 3, 5, 15, 23, 69, 115, 345
690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 419,161,345,690, is 1.
Now, the common factors can be found like this.
419:419
161:7x 23
345:3x 5x 23
690:2x 3x 5x 23
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3x 5x 23x 23 = 7935
Therefore, the value for common factors is 7935.
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 = 16058614950/(1x7935)
LCM = 16058614950/7935
LCM = 2023770
Thus, we can understand that the LCM of 419,161,345,690 is 2023770.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 419, 161, 345, 690
1. What is the LCM of 419, 161, 345, 690?
Answer: LCM of 419, 161, 345, 690 is 2023770.
2. How to calculate the LCM of 419, 161, 345, 690?
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 419, 161, 345, 690.
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}.