LCM of 645, 845, 121, 156, 176
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 645, 845, 121, 156, 176 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 645, 845, 121, 156, 176. So, keep reading to learn more.
Given numbers are 645,845,121,156,176
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 645,845,121,156,176 is 211033680.
Find LCM of 645,845,121,156,176 with Prime Factorization
| 2 | 645, 845, 121, 156, 176 |
| 2 | 645, 845, 121, 78, 88 |
| 3 | 645, 845, 121, 39, 44 |
| 5 | 215, 845, 121, 13, 44 |
| 11 | 43, 169, 121, 13, 44 |
| 13 | 43, 169, 11, 13, 4 |
| 43, 1, 11, 13, 4 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 5 x 11 x 13 x 43 x 1 x 11 x 13 x 4 = 211033680
Therefore, the lowest common multiple of 645,845,121,156,176 is 211033680.
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.
645 x 845 x 121 x 156 x 176 = 1810668974400
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.
645 : 1, 3, 5, 15, 43, 129, 215, 645
845 : 1, 5, 13, 65, 169, 845
121 : 1, 11, 121
156 : 1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156
176 : 1, 2, 4, 8, 11, 16, 22, 44, 88, 176
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 645,845,121,156,176, is 1.
Now, the common factors can be found like this.
645:3x 5x 43
845:5x 13x 13
121:11x 11
156:2x 2x 3x 13
176:2x 2x 2x 2x 11
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 3x 5x 11x 13 = 8580
Therefore, the value for common factors is 8580.
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 = 1810668974400/(1x8580)
LCM = 1810668974400/8580
LCM = 211033680
Thus, we can understand that the LCM of 645,845,121,156,176 is 211033680.
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FAQs on LCM of 645, 845, 121, 156, 176
1. What is the LCM of 645, 845, 121, 156, 176?
Answer: LCM of 645, 845, 121, 156, 176 is 211033680.
2. How to calculate the LCM of 645, 845, 121, 156, 176?
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 645, 845, 121, 156, 176.
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}.