LCM of 752, 430, 972, 987
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 752, 430, 972, 987 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 752, 430, 972, 987. So, keep reading to learn more.
Given numbers are 752,430,972,987
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 752,430,972,987 is 275017680.
Find LCM of 752,430,972,987 with Prime Factorization
| 2 | 752, 430, 972, 987 |
| 2 | 376, 215, 486, 987 |
| 3 | 188, 215, 243, 987 |
| 47 | 188, 215, 81, 329 |
| 4, 215, 81, 7 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 47 x 4 x 215 x 81 x 7 = 275017680
Therefore, the lowest common multiple of 752,430,972,987 is 275017680.
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.
752 x 430 x 972 x 987 = 310219943040
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.
752 : 1, 2, 4, 8, 16, 47, 94, 188, 376, 752
430 : 1, 2, 5, 10, 43, 86, 215, 430
972 : 1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 972
987 : 1, 3, 7, 21, 47, 141, 329, 987
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 752,430,972,987, is 1.
Now, the common factors can be found like this.
752:2x 2x 2x 2x 47
430:2x 5x 43
972:2x 2x 3x 3x 3x 3x 3
987:3x 7x 47
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 3x 47 = 1128
Therefore, the value for common factors is 1128.
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 = 310219943040/(1x1128)
LCM = 310219943040/1128
LCM = 275017680
Thus, we can understand that the LCM of 752,430,972,987 is 275017680.
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FAQs on LCM of 752, 430, 972, 987
1. What is the LCM of 752, 430, 972, 987?
Answer: LCM of 752, 430, 972, 987 is 275017680.
2. How to calculate the LCM of 752, 430, 972, 987?
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 752, 430, 972, 987.
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}.