LCM of 161, 943, 697, 641
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 161, 943, 697, 641 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 161, 943, 697, 641. So, keep reading to learn more.
Given numbers are 161,943,697,641
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 161,943,697,641 is 71931097.
Find LCM of 161,943,697,641 with Prime Factorization
| 23 | 161, 943, 697, 641 |
| 41 | 7, 41, 697, 641 |
| 7, 1, 17, 641 |
Multiply the prime numbers at the bottom and the left side.
23 x 41 x 7 x 1 x 17 x 641 = 71931097
Therefore, the lowest common multiple of 161,943,697,641 is 71931097.
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.
161 x 943 x 697 x 641 = 67831024471
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.
161 : 1, 7, 23, 161
943 : 1, 23, 41, 943
697 : 1, 17, 41, 697
641 : 1, 641
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 161,943,697,641, is 1.
Now, the common factors can be found like this.
161:7x 23
943:23x 41
697:17x 41
641:641
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
23x 41 = 943
Therefore, the value for common factors is 943.
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 = 67831024471/(1x943)
LCM = 67831024471/943
LCM = 71931097
Thus, we can understand that the LCM of 161,943,697,641 is 71931097.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 161, 943, 697, 641
1. What is the LCM of 161, 943, 697, 641?
Answer: LCM of 161, 943, 697, 641 is 71931097.
2. How to calculate the LCM of 161, 943, 697, 641?
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 161, 943, 697, 641.
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}.