Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 7845 and 7850 the smallest integer that is 12316650 that is divisible by both numbers.
Least Common Multiple (LCM) of 7845 and 7850 is 12316650.
LCM(7845,7850) = 12316650
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 7845 and 7850. First we will calculate the prime factors of 7845 and 7850.
Prime Factorization of 7845
3 | 7845 |
5 | 2615 |
523 | 523 |
1 |
Prime factors of 7845 are 3, 5,523. Prime factorization of 7845 in exponential form is:
7845 = 31×51×5231
Prime Factorization of 7850
2 | 7850 |
5 | 3925 |
5 | 785 |
157 | 157 |
1 |
Prime factors of 7850 are 2, 5,157. Prime factorization of 7850 in exponential form is:
7850 = 21×52×1571
Now multiplying the highest exponent prime factors to calculate the LCM of 7845 and 7850.
LCM(7845,7850) = 21×31×52×1571×5231
LCM(7845,7850) = 12316650
Factors of 7845
List of positive integer factors of 7845 that divides 7845 without a remainder.
1, 3, 5, 15, 523, 1569, 2615, 7845
Factors of 7850
List of positive integer factors of 7850 that divides 7850 without a remainder.
1, 2, 5, 10, 25, 50, 157, 314, 785, 1570, 3925, 7850
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7845 and 7850, than apply into the LCM equation.
GCF(7845,7850) = 5
LCM(7845,7850) = ( 7845 × 7850) / 5
LCM(7845,7850) = 61583250 / 5
LCM(7845,7850) = 12316650
(i) The LCM of 7850 and 7845 is associative
LCM of 7845 and 7850 = LCM of 7850 and 7845
1. What is the LCM of 7845 and 7850?
Answer: LCM of 7845 and 7850 is 12316650.
2. What are the Factors of 7845?
Answer: Factors of 7845 are 1, 3, 5, 15, 523, 1569, 2615, 7845. There are 8 integers that are factors of 7845. The greatest factor of 7845 is 7845.
3. What are the Factors of 7850?
Answer: Factors of 7850 are 1, 2, 5, 10, 25, 50, 157, 314, 785, 1570, 3925, 7850. There are 12 integers that are factors of 7850. The greatest factor of 7850 is 7850.
4. How to Find the LCM of 7845 and 7850?
Answer:
Least Common Multiple of 7845 and 7850 = 12316650
Step 1: Find the prime factorization of 7845
7845 = 3 x 5 x 523
Step 2: Find the prime factorization of 7850
7850 = 2 x 5 x 5 x 157
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 12316650 = 2 x 3 x 5 x 5 x 157 x 523
Step 4: Therefore, the least common multiple of 7845 and 7850 is 12316650.