LCM of 980, 789, 665, 970
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 980, 789, 665, 970 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 980, 789, 665, 970. So, keep reading to learn more.
Given numbers are 980,789,665,970
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 980,789,665,970 is 1425044460.
Find LCM of 980,789,665,970 with Prime Factorization
| 2 | 980, 789, 665, 970 |
| 5 | 490, 789, 665, 485 |
| 7 | 98, 789, 133, 97 |
| 14, 789, 19, 97 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 7 x 14 x 789 x 19 x 97 = 1425044460
Therefore, the lowest common multiple of 980,789,665,970 is 1425044460.
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.
980 x 789 x 665 x 970 = 498765561000
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.
980 : 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980
789 : 1, 3, 263, 789
665 : 1, 5, 7, 19, 35, 95, 133, 665
970 : 1, 2, 5, 10, 97, 194, 485, 970
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 980,789,665,970, is 1.
Now, the common factors can be found like this.
980:2x 2x 5x 7x 7
789:3x 263
665:5x 7x 19
970:2x 5x 97
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 5x 5x 7 = 350
Therefore, the value for common factors is 350.
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 = 498765561000/(1x350)
LCM = 498765561000/350
LCM = 1425044460
Thus, we can understand that the LCM of 980,789,665,970 is 1425044460.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 980, 789, 665, 970
1. What is the LCM of 980, 789, 665, 970?
Answer: LCM of 980, 789, 665, 970 is 1425044460.
2. How to calculate the LCM of 980, 789, 665, 970?
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 980, 789, 665, 970.
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}.