LCM of 251, 154, 870, 686, 755
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 251, 154, 870, 686, 755 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 251, 154, 870, 686, 755. So, keep reading to learn more.
Given numbers are 251,154,870,686,755
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 251,154,870,686,755 is 124410411510.
Find LCM of 251,154,870,686,755 with Prime Factorization
| 2 | 251, 154, 870, 686, 755 |
| 5 | 251, 77, 435, 343, 755 |
| 7 | 251, 77, 87, 343, 151 |
| 251, 11, 87, 49, 151 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 7 x 251 x 11 x 87 x 49 x 151 = 124410411510
Therefore, the lowest common multiple of 251,154,870,686,755 is 124410411510.
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.
251 x 154 x 870 x 686 x 755 = 17417457611400
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.
251 : 1, 251
154 : 1, 2, 7, 11, 14, 22, 77, 154
870 : 1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 145, 174, 290, 435, 870
686 : 1, 2, 7, 14, 49, 98, 343, 686
755 : 1, 5, 151, 755
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 251,154,870,686,755, is 1.
Now, the common factors can be found like this.
251:251
154:2x 7x 11
870:2x 3x 5x 29
686:2x 7x 7x 7
755:5x 151
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 5x 7 = 140
Therefore, the value for common factors is 140.
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 = 17417457611400/(1x140)
LCM = 17417457611400/140
LCM = 124410411510
Thus, we can understand that the LCM of 251,154,870,686,755 is 124410411510.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 251, 154, 870, 686, 755
1. What is the LCM of 251, 154, 870, 686, 755?
Answer: LCM of 251, 154, 870, 686, 755 is 124410411510.
2. How to calculate the LCM of 251, 154, 870, 686, 755?
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 251, 154, 870, 686, 755.
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}.