LCM of 646, 759, 429, 491, 768
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 646, 759, 429, 491, 768 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 646, 759, 429, 491, 768. So, keep reading to learn more.
Given numbers are 646,759,429,491,768
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 646,759,429,491,768 is 400598305536.
Find LCM of 646,759,429,491,768 with Prime Factorization
| 2 | 646, 759, 429, 491, 768 |
| 3 | 323, 759, 429, 491, 384 |
| 11 | 323, 253, 143, 491, 128 |
| 323, 23, 13, 491, 128 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 11 x 323 x 23 x 13 x 491 x 128 = 400598305536
Therefore, the lowest common multiple of 646,759,429,491,768 is 400598305536.
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.
646 x 759 x 429 x 491 x 768 = 79318464496128
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.
646 : 1, 2, 17, 19, 34, 38, 323, 646
759 : 1, 3, 11, 23, 33, 69, 253, 759
429 : 1, 3, 11, 13, 33, 39, 143, 429
491 : 1, 491
768 : 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256, 384, 768
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 646,759,429,491,768, is 1.
Now, the common factors can be found like this.
646:2x 17x 19
759:3x 11x 23
429:3x 11x 13
491:491
768:2x 2x 2x 2x 2x 2x 2x 2x 3
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 3x 11 = 198
Therefore, the value for common factors is 198.
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 = 79318464496128/(1x198)
LCM = 79318464496128/198
LCM = 400598305536
Thus, we can understand that the LCM of 646,759,429,491,768 is 400598305536.
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FAQs on LCM of 646, 759, 429, 491, 768
1. What is the LCM of 646, 759, 429, 491, 768?
Answer: LCM of 646, 759, 429, 491, 768 is 400598305536.
2. How to calculate the LCM of 646, 759, 429, 491, 768?
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 646, 759, 429, 491, 768.
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}.