Find the LCM of 257, 140, 712, 490 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 257, 140, 712, 490. So, keep reading to learn more.
Given numbers are 257,140,712,490
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 257,140,712,490 is 44831080.
Find LCM of 257,140,712,490 with Prime Factorization
2 | 257, 140, 712, 490 |
2 | 257, 70, 356, 245 |
5 | 257, 35, 178, 245 |
7 | 257, 7, 178, 49 |
257, 1, 178, 7 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 5 x 7 x 257 x 1 x 178 x 7 = 44831080
Therefore, the lowest common multiple of 257,140,712,490 is 44831080.
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.
257 x 140 x 712 x 490 = 12552702400
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.
257 : 1, 257
140 : 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140
712 : 1, 2, 4, 8, 89, 178, 356, 712
490 : 1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 257,140,712,490, is 1.
Now, the common factors can be found like this.
257:257
140:2x 2x 5x 7
712:2x 2x 2x 89
490:2x 5x 7x 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 2x 5x 7 = 280
Therefore, the value for common factors is 280.
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 = 12552702400/(1x280)
LCM = 12552702400/280
LCM = 44831080
Thus, we can understand that the LCM of 257,140,712,490 is 44831080.
Here are some samples of LCM of two or more Numbers calculations.
1. What is the LCM of 257, 140, 712, 490?
Answer: LCM of 257, 140, 712, 490 is 44831080.
2. How to calculate the LCM of 257, 140, 712, 490?
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 257, 140, 712, 490.
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}.