LCM of 694, 646, 855, 785, 478
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 694, 646, 855, 785, 478 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 694, 646, 855, 785, 478. So, keep reading to learn more.
Given numbers are 694,646,855,785,478
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 694,646,855,785,478 is 378505382670.
Find LCM of 694,646,855,785,478 with Prime Factorization
| 2 | 694, 646, 855, 785, 478 |
| 5 | 347, 323, 855, 785, 239 |
| 19 | 347, 323, 171, 157, 239 |
| 347, 17, 9, 157, 239 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 19 x 347 x 17 x 9 x 157 x 239 = 378505382670
Therefore, the lowest common multiple of 694,646,855,785,478 is 378505382670.
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.
694 x 646 x 855 x 785 x 478 = 143832045414600
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.
694 : 1, 2, 347, 694
646 : 1, 2, 17, 19, 34, 38, 323, 646
855 : 1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855
785 : 1, 5, 157, 785
478 : 1, 2, 239, 478
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 694,646,855,785,478, is 1.
Now, the common factors can be found like this.
694:2x 347
646:2x 17x 19
855:3x 3x 5x 19
785:5x 157
478:2x 239
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 19 = 380
Therefore, the value for common factors is 380.
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 = 143832045414600/(1x380)
LCM = 143832045414600/380
LCM = 378505382670
Thus, we can understand that the LCM of 694,646,855,785,478 is 378505382670.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 694, 646, 855, 785, 478
1. What is the LCM of 694, 646, 855, 785, 478?
Answer: LCM of 694, 646, 855, 785, 478 is 378505382670.
2. How to calculate the LCM of 694, 646, 855, 785, 478?
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 694, 646, 855, 785, 478.
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}.