LCM of 669, 440, 993, 691
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 669, 440, 993, 691 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 669, 440, 993, 691. So, keep reading to learn more.
Given numbers are 669,440,993,691
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 669,440,993,691 is 67326313560.
Find LCM of 669,440,993,691 with Prime Factorization
| 3 | 669, 440, 993, 691 |
| 223, 440, 331, 691 |
Multiply the prime numbers at the bottom and the left side.
3 x 223 x 440 x 331 x 691 = 67326313560
Therefore, the lowest common multiple of 669,440,993,691 is 67326313560.
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.
669 x 440 x 993 x 691 = 201978940680
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.
669 : 1, 3, 223, 669
440 : 1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440
993 : 1, 3, 331, 993
691 : 1, 691
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 669,440,993,691, is 1.
Now, the common factors can be found like this.
669:3x 223
440:2x 2x 2x 5x 11
993:3x 331
691:691
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
3 = 3
Therefore, the value for common factors is 3.
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 = 201978940680/(1x3)
LCM = 201978940680/3
LCM = 67326313560
Thus, we can understand that the LCM of 669,440,993,691 is 67326313560.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 669, 440, 993, 691
1. What is the LCM of 669, 440, 993, 691?
Answer: LCM of 669, 440, 993, 691 is 67326313560.
2. How to calculate the LCM of 669, 440, 993, 691?
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 669, 440, 993, 691.
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}.