LCM of 628, 100, 690, 672
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 628, 100, 690, 672 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 628, 100, 690, 672. So, keep reading to learn more.
Given numbers are 628,100,690,672
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 628,100,690,672 is 60664800.
Find LCM of 628,100,690,672 with Prime Factorization
| 2 | 628, 100, 690, 672 |
| 2 | 314, 50, 345, 336 |
| 3 | 157, 25, 345, 168 |
| 5 | 157, 25, 115, 56 |
| 157, 5, 23, 56 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 5 x 157 x 5 x 23 x 56 = 60664800
Therefore, the lowest common multiple of 628,100,690,672 is 60664800.
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.
628 x 100 x 690 x 672 = 29119104000
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.
628 : 1, 2, 4, 157, 314, 628
100 : 1, 2, 4, 5, 10, 20, 25, 50, 100
690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
672 : 1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672
2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 628,100,690,672, is 2.
Now, the common factors can be found like this.
628:2x 2x 157
100:2x 2x 5x 5
690:2x 3x 5x 23
672:2x 2x 2x 2x 2x 3x 7
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 2x 2x 3x 5 = 240
Therefore, the value for common factors is 240.
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 = 29119104000/(2x240)
LCM = 29119104000/480
LCM = 60664800
Thus, we can understand that the LCM of 628,100,690,672 is 60664800.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 628, 100, 690, 672
1. What is the LCM of 628, 100, 690, 672?
Answer: LCM of 628, 100, 690, 672 is 60664800.
2. How to calculate the LCM of 628, 100, 690, 672?
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 628, 100, 690, 672.
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}.