LCM of 639, 361, 628, 456
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 639, 361, 628, 456 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 639, 361, 628, 456. So, keep reading to learn more.
Given numbers are 639,361,628,456
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 639,361,628,456 is 289732824.
Find LCM of 639,361,628,456 with Prime Factorization
| 2 | 639, 361, 628, 456 |
| 2 | 639, 361, 314, 228 |
| 3 | 639, 361, 157, 114 |
| 19 | 213, 361, 157, 38 |
| 213, 19, 157, 2 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 19 x 213 x 19 x 157 x 2 = 289732824
Therefore, the lowest common multiple of 639,361,628,456 is 289732824.
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.
639 x 361 x 628 x 456 = 66059083872
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.
639 : 1, 3, 9, 71, 213, 639
361 : 1, 19, 361
628 : 1, 2, 4, 157, 314, 628
456 : 1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 152, 228, 456
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 639,361,628,456, is 1.
Now, the common factors can be found like this.
639:3x 3x 71
361:19x 19
628:2x 2x 157
456:2x 2x 2x 3x 19
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 19 = 228
Therefore, the value for common factors is 228.
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 = 66059083872/(1x228)
LCM = 66059083872/228
LCM = 289732824
Thus, we can understand that the LCM of 639,361,628,456 is 289732824.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 639, 361, 628, 456
1. What is the LCM of 639, 361, 628, 456?
Answer: LCM of 639, 361, 628, 456 is 289732824.
2. How to calculate the LCM of 639, 361, 628, 456?
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 639, 361, 628, 456.
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}.