Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 7838 and 7846 the smallest integer that is 30748474 that is divisible by both numbers.
Least Common Multiple (LCM) of 7838 and 7846 is 30748474.
LCM(7838,7846) = 30748474
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 7838 and 7846. First we will calculate the prime factors of 7838 and 7846.
Prime Factorization of 7838
2 | 7838 |
3919 | 3919 |
1 |
Prime factors of 7838 are 2,3919. Prime factorization of 7838 in exponential form is:
7838 = 21×39191
Prime Factorization of 7846
2 | 7846 |
3923 | 3923 |
1 |
Prime factors of 7846 are 2,3923. Prime factorization of 7846 in exponential form is:
7846 = 21×39231
Now multiplying the highest exponent prime factors to calculate the LCM of 7838 and 7846.
LCM(7838,7846) = 21×39191×39231
LCM(7838,7846) = 30748474
Factors of 7838
List of positive integer factors of 7838 that divides 7838 without a remainder.
1, 2, 3919, 7838
Factors of 7846
List of positive integer factors of 7846 that divides 7846 without a remainder.
1, 2, 3923, 7846
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7838 and 7846, than apply into the LCM equation.
GCF(7838,7846) = 2
LCM(7838,7846) = ( 7838 × 7846) / 2
LCM(7838,7846) = 61496948 / 2
LCM(7838,7846) = 30748474
(i) The LCM of 7846 and 7838 is associative
LCM of 7838 and 7846 = LCM of 7846 and 7838
1. What is the LCM of 7838 and 7846?
Answer: LCM of 7838 and 7846 is 30748474.
2. What are the Factors of 7838?
Answer: Factors of 7838 are 1, 2, 3919, 7838. There are 4 integers that are factors of 7838. The greatest factor of 7838 is 7838.
3. What are the Factors of 7846?
Answer: Factors of 7846 are 1, 2, 3923, 7846. There are 4 integers that are factors of 7846. The greatest factor of 7846 is 7846.
4. How to Find the LCM of 7838 and 7846?
Answer:
Least Common Multiple of 7838 and 7846 = 30748474
Step 1: Find the prime factorization of 7838
7838 = 2 x 3919
Step 2: Find the prime factorization of 7846
7846 = 2 x 3923
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 30748474 = 2 x 3919 x 3923
Step 4: Therefore, the least common multiple of 7838 and 7846 is 30748474.