LCM of 721, 320, 242, 685, 693
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 721, 320, 242, 685, 693 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 721, 320, 242, 685, 693. So, keep reading to learn more.
Given numbers are 721,320,242,685,693
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 721,320,242,685,693 is 34421808960.
Find LCM of 721,320,242,685,693 with Prime Factorization
| 2 | 721, 320, 242, 685, 693 |
| 5 | 721, 160, 121, 685, 693 |
| 7 | 721, 32, 121, 137, 693 |
| 11 | 103, 32, 121, 137, 99 |
| 103, 32, 11, 137, 9 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 7 x 11 x 103 x 32 x 11 x 137 x 9 = 34421808960
Therefore, the lowest common multiple of 721,320,242,685,693 is 34421808960.
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.
721 x 320 x 242 x 685 x 693 = 26504792899200
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.
721 : 1, 7, 103, 721
320 : 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320
242 : 1, 2, 11, 22, 121, 242
685 : 1, 5, 137, 685
693 : 1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 721,320,242,685,693, is 1.
Now, the common factors can be found like this.
721:7x 103
320:2x 2x 2x 2x 2x 2x 5
242:2x 11x 11
685:5x 137
693:3x 3x 7x 11
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 7x 11 = 770
Therefore, the value for common factors is 770.
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 = 26504792899200/(1x770)
LCM = 26504792899200/770
LCM = 34421808960
Thus, we can understand that the LCM of 721,320,242,685,693 is 34421808960.
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FAQs on LCM of 721, 320, 242, 685, 693
1. What is the LCM of 721, 320, 242, 685, 693?
Answer: LCM of 721, 320, 242, 685, 693 is 34421808960.
2. How to calculate the LCM of 721, 320, 242, 685, 693?
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 721, 320, 242, 685, 693.
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}.