LCM of 420, 301, 628, 949
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 420, 301, 628, 949 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 420, 301, 628, 949. So, keep reading to learn more.
Given numbers are 420,301,628,949
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 420,301,628,949 is 2690813580.
Find LCM of 420,301,628,949 with Prime Factorization
| 2 | 420, 301, 628, 949 |
| 2 | 210, 301, 314, 949 |
| 7 | 105, 301, 157, 949 |
| 15, 43, 157, 949 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 7 x 15 x 43 x 157 x 949 = 2690813580
Therefore, the lowest common multiple of 420,301,628,949 is 2690813580.
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.
420 x 301 x 628 x 949 = 75342780240
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.
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
301 : 1, 7, 43, 301
628 : 1, 2, 4, 157, 314, 628
949 : 1, 13, 73, 949
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 420,301,628,949, is 1.
Now, the common factors can be found like this.
420:2x 2x 3x 5x 7
301:7x 43
628:2x 2x 157
949:13x 73
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 7 = 28
Therefore, the value for common factors is 28.
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 = 75342780240/(1x28)
LCM = 75342780240/28
LCM = 2690813580
Thus, we can understand that the LCM of 420,301,628,949 is 2690813580.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 420, 301, 628, 949
1. What is the LCM of 420, 301, 628, 949?
Answer: LCM of 420, 301, 628, 949 is 2690813580.
2. How to calculate the LCM of 420, 301, 628, 949?
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 420, 301, 628, 949.
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}.