Find the LCM of 400, 420, 677, 287 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 400, 420, 677, 287. So, keep reading to learn more.
Given numbers are 400,420,677,287
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 400,420,677,287 is 233158800.
Find LCM of 400,420,677,287 with Prime Factorization
2 | 400, 420, 677, 287 |
2 | 200, 210, 677, 287 |
5 | 100, 105, 677, 287 |
7 | 20, 21, 677, 287 |
20, 3, 677, 41 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 5 x 7 x 20 x 3 x 677 x 41 = 233158800
Therefore, the lowest common multiple of 400,420,677,287 is 233158800.
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.
400 x 420 x 677 x 287 = 32642232000
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.
400 : 1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400
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
677 : 1, 677
287 : 1, 7, 41, 287
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 400,420,677,287, is 1.
Now, the common factors can be found like this.
400:2x 2x 2x 2x 5x 5
420:2x 2x 3x 5x 7
677:677
287:7x 41
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 7 = 140
Therefore, the value for common factors is 140.
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 = 32642232000/(1x140)
LCM = 32642232000/140
LCM = 233158800
Thus, we can understand that the LCM of 400,420,677,287 is 233158800.
Here are some samples of LCM of two or more Numbers calculations.
1. What is the LCM of 400, 420, 677, 287?
Answer: LCM of 400, 420, 677, 287 is 233158800.
2. How to calculate the LCM of 400, 420, 677, 287?
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 400, 420, 677, 287.
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}.