Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 4781 and 4785 the smallest integer that is 22877085 that is divisible by both numbers.
Least Common Multiple (LCM) of 4781 and 4785 is 22877085.
LCM(4781,4785) = 22877085
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 4781 and 4785. First we will calculate the prime factors of 4781 and 4785.
Prime Factorization of 4781
7 | 4781 |
683 | 683 |
1 |
Prime factors of 4781 are 7,683. Prime factorization of 4781 in exponential form is:
4781 = 71×6831
Prime Factorization of 4785
3 | 4785 |
5 | 1595 |
11 | 319 |
29 | 29 |
1 |
Prime factors of 4785 are 3, 5, 11,29. Prime factorization of 4785 in exponential form is:
4785 = 31×51×111×291
Now multiplying the highest exponent prime factors to calculate the LCM of 4781 and 4785.
LCM(4781,4785) = 31×51×71×111×291×6831
LCM(4781,4785) = 22877085
Factors of 4781
List of positive integer factors of 4781 that divides 4781 without a remainder.
1, 7, 683, 4781
Factors of 4785
List of positive integer factors of 4785 that divides 4785 without a remainder.
1, 3, 5, 11, 15, 29, 33, 55, 87, 145, 165, 319, 435, 957, 1595, 4785
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 4781 and 4785, than apply into the LCM equation.
GCF(4781,4785) = 1
LCM(4781,4785) = ( 4781 × 4785) / 1
LCM(4781,4785) = 22877085 / 1
LCM(4781,4785) = 22877085
(i) The LCM of 4785 and 4781 is associative
LCM of 4781 and 4785 = LCM of 4785 and 4781
1. What is the LCM of 4781 and 4785?
Answer: LCM of 4781 and 4785 is 22877085.
2. What are the Factors of 4781?
Answer: Factors of 4781 are 1, 7, 683, 4781. There are 4 integers that are factors of 4781. The greatest factor of 4781 is 4781.
3. What are the Factors of 4785?
Answer: Factors of 4785 are 1, 3, 5, 11, 15, 29, 33, 55, 87, 145, 165, 319, 435, 957, 1595, 4785. There are 16 integers that are factors of 4785. The greatest factor of 4785 is 4785.
4. How to Find the LCM of 4781 and 4785?
Answer:
Least Common Multiple of 4781 and 4785 = 22877085
Step 1: Find the prime factorization of 4781
4781 = 7 x 683
Step 2: Find the prime factorization of 4785
4785 = 3 x 5 x 11 x 29
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 22877085 = 3 x 5 x 7 x 11 x 29 x 683
Step 4: Therefore, the least common multiple of 4781 and 4785 is 22877085.