LCM of 668, 740, 736, 690
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 668, 740, 736, 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 668, 740, 736, 690. So, keep reading to learn more.
Given numbers are 668,740,736,690
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 668,740,736,690 is 68216160.
Find LCM of 668,740,736,690 with Prime Factorization
| 2 | 668, 740, 736, 690 |
| 2 | 334, 370, 368, 345 |
| 5 | 167, 185, 184, 345 |
| 23 | 167, 37, 184, 69 |
| 167, 37, 8, 3 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 5 x 23 x 167 x 37 x 8 x 3 = 68216160
Therefore, the lowest common multiple of 668,740,736,690 is 68216160.
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.
668 x 740 x 736 x 690 = 251035468800
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.
668 : 1, 2, 4, 167, 334, 668
740 : 1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740
736 : 1, 2, 4, 8, 16, 23, 32, 46, 92, 184, 368, 736
690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
2 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 668,740,736,690, is 2.
Now, the common factors can be found like this.
668:2x 2x 167
740:2x 2x 5x 37
736:2x 2x 2x 2x 2x 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.
2x 2x 2x 2x 5x 23 = 1840
Therefore, the value for common factors is 1840.
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 = 251035468800/(2x1840)
LCM = 251035468800/3680
LCM = 68216160
Thus, we can understand that the LCM of 668,740,736,690 is 68216160.
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FAQs on LCM of 668, 740, 736, 690
1. What is the LCM of 668, 740, 736, 690?
Answer: LCM of 668, 740, 736, 690 is 68216160.
2. How to calculate the LCM of 668, 740, 736, 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 668, 740, 736, 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}.