LCM of 761, 398, 765, 170
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 761, 398, 765, 170 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 761, 398, 765, 170. So, keep reading to learn more.
Given numbers are 761,398,765,170
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 761,398,765,170 is 231701670.
Find LCM of 761,398,765,170 with Prime Factorization
| 2 | 761, 398, 765, 170 |
| 5 | 761, 199, 765, 85 |
| 17 | 761, 199, 153, 17 |
| 761, 199, 9, 1 |
Multiply the prime numbers at the bottom and the left side.
2 x 5 x 17 x 761 x 199 x 9 x 1 = 231701670
Therefore, the lowest common multiple of 761,398,765,170 is 231701670.
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.
761 x 398 x 765 x 170 = 39389283900
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.
761 : 1, 761
398 : 1, 2, 199, 398
765 : 1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765
170 : 1, 2, 5, 10, 17, 34, 85, 170
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 761,398,765,170, is 1.
Now, the common factors can be found like this.
761:761
398:2x 199
765:3x 3x 5x 17
170:2x 5x 17
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 17 = 170
Therefore, the value for common factors is 170.
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 = 39389283900/(1x170)
LCM = 39389283900/170
LCM = 231701670
Thus, we can understand that the LCM of 761,398,765,170 is 231701670.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 761, 398, 765, 170
1. What is the LCM of 761, 398, 765, 170?
Answer: LCM of 761, 398, 765, 170 is 231701670.
2. How to calculate the LCM of 761, 398, 765, 170?
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 761, 398, 765, 170.
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}.