LCM of 749, 428, 680, 697
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 749, 428, 680, 697 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 749, 428, 680, 697. So, keep reading to learn more.
Given numbers are 749,428,680,697
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 749,428,680,697 is 20882120.
Find LCM of 749,428,680,697 with Prime Factorization
| 2 | 749, 428, 680, 697 |
| 2 | 749, 214, 340, 697 |
| 17 | 749, 107, 170, 697 |
| 107 | 749, 107, 10, 41 |
| 7, 1, 10, 41 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 17 x 107 x 7 x 1 x 10 x 41 = 20882120
Therefore, the lowest common multiple of 749,428,680,697 is 20882120.
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.
749 x 428 x 680 x 697 = 151938305120
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.
749 : 1, 7, 107, 749
428 : 1, 2, 4, 107, 214, 428
680 : 1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680
697 : 1, 17, 41, 697
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 749,428,680,697, is 1.
Now, the common factors can be found like this.
749:7x 107
428:2x 2x 107
680:2x 2x 2x 5x 17
697:17x 41
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 17x 107 = 7276
Therefore, the value for common factors is 7276.
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 = 151938305120/(1x7276)
LCM = 151938305120/7276
LCM = 20882120
Thus, we can understand that the LCM of 749,428,680,697 is 20882120.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 749, 428, 680, 697
1. What is the LCM of 749, 428, 680, 697?
Answer: LCM of 749, 428, 680, 697 is 20882120.
2. How to calculate the LCM of 749, 428, 680, 697?
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 749, 428, 680, 697.
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}.