LCM of 156, 690, 421, 115
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 156, 690, 421, 115 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 156, 690, 421, 115. So, keep reading to learn more.
Given numbers are 156,690,421,115
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 156,690,421,115 is 7552740.
Find LCM of 156,690,421,115 with Prime Factorization
| 2 | 156, 690, 421, 115 |
| 3 | 78, 345, 421, 115 |
| 5 | 26, 115, 421, 115 |
| 23 | 26, 23, 421, 23 |
| 26, 1, 421, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 5 x 23 x 26 x 1 x 421 x 1 = 7552740
Therefore, the lowest common multiple of 156,690,421,115 is 7552740.
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.
156 x 690 x 421 x 115 = 5211390600
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.
156 : 1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156
690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
421 : 1, 421
115 : 1, 5, 23, 115
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 156,690,421,115, is 1.
Now, the common factors can be found like this.
156:2x 2x 3x 13
690:2x 3x 5x 23
421:421
115:5x 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 3x 5x 23 = 690
Therefore, the value for common factors is 690.
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 = 5211390600/(1x690)
LCM = 5211390600/690
LCM = 7552740
Thus, we can understand that the LCM of 156,690,421,115 is 7552740.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 156, 690, 421, 115
1. What is the LCM of 156, 690, 421, 115?
Answer: LCM of 156, 690, 421, 115 is 7552740.
2. How to calculate the LCM of 156, 690, 421, 115?
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 156, 690, 421, 115.
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}.