Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 7855 and 7863 the smallest integer that is 61763865 that is divisible by both numbers.
Least Common Multiple (LCM) of 7855 and 7863 is 61763865.
LCM(7855,7863) = 61763865
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 7855 and 7863. First we will calculate the prime factors of 7855 and 7863.
Prime Factorization of 7855
5 | 7855 |
1571 | 1571 |
1 |
Prime factors of 7855 are 5,1571. Prime factorization of 7855 in exponential form is:
7855 = 51×15711
Prime Factorization of 7863
3 | 7863 |
2621 | 2621 |
1 |
Prime factors of 7863 are 3,2621. Prime factorization of 7863 in exponential form is:
7863 = 31×26211
Now multiplying the highest exponent prime factors to calculate the LCM of 7855 and 7863.
LCM(7855,7863) = 31×51×15711×26211
LCM(7855,7863) = 61763865
Factors of 7855
List of positive integer factors of 7855 that divides 7855 without a remainder.
1, 5, 1571, 7855
Factors of 7863
List of positive integer factors of 7863 that divides 7863 without a remainder.
1, 3, 2621, 7863
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7855 and 7863, than apply into the LCM equation.
GCF(7855,7863) = 1
LCM(7855,7863) = ( 7855 × 7863) / 1
LCM(7855,7863) = 61763865 / 1
LCM(7855,7863) = 61763865
(i) The LCM of 7863 and 7855 is associative
LCM of 7855 and 7863 = LCM of 7863 and 7855
1. What is the LCM of 7855 and 7863?
Answer: LCM of 7855 and 7863 is 61763865.
2. What are the Factors of 7855?
Answer: Factors of 7855 are 1, 5, 1571, 7855. There are 4 integers that are factors of 7855. The greatest factor of 7855 is 7855.
3. What are the Factors of 7863?
Answer: Factors of 7863 are 1, 3, 2621, 7863. There are 4 integers that are factors of 7863. The greatest factor of 7863 is 7863.
4. How to Find the LCM of 7855 and 7863?
Answer:
Least Common Multiple of 7855 and 7863 = 61763865
Step 1: Find the prime factorization of 7855
7855 = 5 x 1571
Step 2: Find the prime factorization of 7863
7863 = 3 x 2621
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 61763865 = 3 x 5 x 1571 x 2621
Step 4: Therefore, the least common multiple of 7855 and 7863 is 61763865.