Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 8785 and 8789 the smallest integer that is 77211365 that is divisible by both numbers.
Least Common Multiple (LCM) of 8785 and 8789 is 77211365.
LCM(8785,8789) = 77211365
Least common multiple or lowest common denominator (LCD) can be calculated in three ways;
Least common multiple can be found by multiplying the highest exponent prime factors of 8785 and 8789. First we will calculate the prime factors of 8785 and 8789.
Prime Factorization of 8785
5 | 8785 |
7 | 1757 |
251 | 251 |
1 |
Prime factors of 8785 are 5, 7,251. Prime factorization of 8785 in exponential form is:
8785 = 51×71×2511
Prime Factorization of 8789
11 | 8789 |
17 | 799 |
47 | 47 |
1 |
Prime factors of 8789 are 11, 17,47. Prime factorization of 8789 in exponential form is:
8789 = 111×171×471
Now multiplying the highest exponent prime factors to calculate the LCM of 8785 and 8789.
LCM(8785,8789) = 51×71×111×171×471×2511
LCM(8785,8789) = 77211365
Factors of 8785
List of positive integer factors of 8785 that divides 8785 without a remainder.
1, 5, 7, 35, 251, 1255, 1757, 8785
Factors of 8789
List of positive integer factors of 8789 that divides 8789 without a remainder.
1, 11, 17, 47, 187, 517, 799, 8789
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8785 and 8789, than apply into the LCM equation.
GCF(8785,8789) = 1
LCM(8785,8789) = ( 8785 × 8789) / 1
LCM(8785,8789) = 77211365 / 1
LCM(8785,8789) = 77211365
(i) The LCM of 8789 and 8785 is associative
LCM of 8785 and 8789 = LCM of 8789 and 8785
1. What is the LCM of 8785 and 8789?
Answer: LCM of 8785 and 8789 is 77211365.
2. What are the Factors of 8785?
Answer: Factors of 8785 are 1, 5, 7, 35, 251, 1255, 1757, 8785. There are 8 integers that are factors of 8785. The greatest factor of 8785 is 8785.
3. What are the Factors of 8789?
Answer: Factors of 8789 are 1, 11, 17, 47, 187, 517, 799, 8789. There are 8 integers that are factors of 8789. The greatest factor of 8789 is 8789.
4. How to Find the LCM of 8785 and 8789?
Answer:
Least Common Multiple of 8785 and 8789 = 77211365
Step 1: Find the prime factorization of 8785
8785 = 5 x 7 x 251
Step 2: Find the prime factorization of 8789
8789 = 11 x 17 x 47
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 77211365 = 5 x 7 x 11 x 17 x 47 x 251
Step 4: Therefore, the least common multiple of 8785 and 8789 is 77211365.