LCM of 690, 643, 532, 995, 494
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 690, 643, 532, 995, 494 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 690, 643, 532, 995, 494. So, keep reading to learn more.
Given numbers are 690,643,532,995,494
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 690,643,532,995,494 is 305307961140.
Find LCM of 690,643,532,995,494 with Prime Factorization
| 2 | 690, 643, 532, 995, 494 |
| 5 | 345, 643, 266, 995, 247 |
| 19 | 69, 643, 266, 199, 247 |
| 69, 643, 14, 199, 13 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 19 x 69 x 643 x 14 x 199 x 13 = 305307961140
Therefore, the lowest common multiple of 690,643,532,995,494 is 305307961140.
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.
690 x 643 x 532 x 995 x 494 = 116017025233200
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.
690 : 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
643 : 1, 643
532 : 1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532
995 : 1, 5, 199, 995
494 : 1, 2, 13, 19, 26, 38, 247, 494
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 690,643,532,995,494, is 1.
Now, the common factors can be found like this.
690:2x 3x 5x 23
643:643
532:2x 2x 7x 19
995:5x 199
494:2x 13x 19
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 5x 19 = 380
Therefore, the value for common factors is 380.
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 = 116017025233200/(1x380)
LCM = 116017025233200/380
LCM = 305307961140
Thus, we can understand that the LCM of 690,643,532,995,494 is 305307961140.
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FAQs on LCM of 690, 643, 532, 995, 494
1. What is the LCM of 690, 643, 532, 995, 494?
Answer: LCM of 690, 643, 532, 995, 494 is 305307961140.
2. How to calculate the LCM of 690, 643, 532, 995, 494?
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 690, 643, 532, 995, 494.
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}.