LCM of 318, 667, 638, 171, 420
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 318, 667, 638, 171, 420 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 318, 667, 638, 171, 420. So, keep reading to learn more.
Given numbers are 318,667,638,171,420
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 318,667,638,171,420 is 9309332340.
Find LCM of 318,667,638,171,420 with Prime Factorization
| 2 | 318, 667, 638, 171, 420 |
| 3 | 159, 667, 319, 171, 210 |
| 29 | 53, 667, 319, 57, 70 |
| 53, 23, 11, 57, 70 |
Multiply the prime numbers at the bottom and the left side.
2 x 3 x 29 x 53 x 23 x 11 x 57 x 70 = 9309332340
Therefore, the lowest common multiple of 318,667,638,171,420 is 9309332340.
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.
318 x 667 x 638 x 171 x 420 = 9718942962960
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.
318 : 1, 2, 3, 6, 53, 106, 159, 318
667 : 1, 23, 29, 667
638 : 1, 2, 11, 22, 29, 58, 319, 638
171 : 1, 3, 9, 19, 57, 171
420 : 1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 318,667,638,171,420, is 1.
Now, the common factors can be found like this.
318:2x 3x 53
667:23x 29
638:2x 11x 29
171:3x 3x 19
420:2x 2x 3x 5x 7
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 3x 29 = 1044
Therefore, the value for common factors is 1044.
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 = 9718942962960/(1x1044)
LCM = 9718942962960/1044
LCM = 9309332340
Thus, we can understand that the LCM of 318,667,638,171,420 is 9309332340.
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FAQs on LCM of 318, 667, 638, 171, 420
1. What is the LCM of 318, 667, 638, 171, 420?
Answer: LCM of 318, 667, 638, 171, 420 is 9309332340.
2. How to calculate the LCM of 318, 667, 638, 171, 420?
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 318, 667, 638, 171, 420.
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}.