LCM of 649, 720, 693, 956
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 649, 720, 693, 956 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 649, 720, 693, 956. So, keep reading to learn more.
Given numbers are 649,720,693,956
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 649,720,693,956 is 781759440.
Find LCM of 649,720,693,956 with Prime Factorization
| 2 | 649, 720, 693, 956 |
| 2 | 649, 360, 693, 478 |
| 3 | 649, 180, 693, 239 |
| 3 | 649, 60, 231, 239 |
| 11 | 649, 20, 77, 239 |
| 59, 20, 7, 239 |
Multiply the prime numbers at the bottom and the left side.
2 x 2 x 3 x 3 x 11 x 59 x 20 x 7 x 239 = 781759440
Therefore, the lowest common multiple of 649,720,693,956 is 781759440.
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.
649 x 720 x 693 x 956 = 309576738240
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.
649 : 1, 11, 59, 649
720 : 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720
693 : 1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693
956 : 1, 2, 4, 239, 478, 956
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 649,720,693,956, is 1.
Now, the common factors can be found like this.
649:11x 59
720:2x 2x 2x 2x 3x 3x 5
693:3x 3x 7x 11
956:2x 2x 239
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 3x 3x 11 = 396
Therefore, the value for common factors is 396.
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 = 309576738240/(1x396)
LCM = 309576738240/396
LCM = 781759440
Thus, we can understand that the LCM of 649,720,693,956 is 781759440.
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FAQs on LCM of 649, 720, 693, 956
1. What is the LCM of 649, 720, 693, 956?
Answer: LCM of 649, 720, 693, 956 is 781759440.
2. How to calculate the LCM of 649, 720, 693, 956?
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 649, 720, 693, 956.
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}.