LCM of 672, 138, 858, 161, 774
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 672, 138, 858, 161, 774 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 672, 138, 858, 161, 774. So, keep reading to learn more.
Given numbers are 672,138,858,161,774
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 672,138,858,161,774 is 285116832.
Find LCM of 672,138,858,161,774 with Prime Factorization
| 2 | 672, 138, 858, 161, 774 |
| 3 | 336, 69, 429, 161, 387 |
| 7 | 112, 23, 143, 161, 129 |
| 23 | 16, 23, 143, 23, 129 |
| 16, 1, 143, 1, 129 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 7 x 23 x 16 x 1 x 143 x 1 x 129 = 285116832
Therefore, the lowest common multiple of 672,138,858,161,774 is 285116832.
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.
672 x 138 x 858 x 161 x 774 = 9915222949632
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.
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
138 : 1, 2, 3, 6, 23, 46, 69, 138
858 : 1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 143, 286, 429, 858
161 : 1, 7, 23, 161
774 : 1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 672,138,858,161,774, is 1.
Now, the common factors can be found like this.
672:2x 2x 2x 2x 2x 3x 7
138:2x 3x 23
858:2x 3x 11x 13
161:7x 23
774:2x 3x 3x 43
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 3x 3x 3x 7x 23 = 34776
Therefore, the value for common factors is 34776.
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 = 9915222949632/(1x34776)
LCM = 9915222949632/34776
LCM = 285116832
Thus, we can understand that the LCM of 672,138,858,161,774 is 285116832.
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FAQs on LCM of 672, 138, 858, 161, 774
1. What is the LCM of 672, 138, 858, 161, 774?
Answer: LCM of 672, 138, 858, 161, 774 is 285116832.
2. How to calculate the LCM of 672, 138, 858, 161, 774?
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 672, 138, 858, 161, 774.
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}.