Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 3915 and 3919 the smallest integer that is 15342885 that is divisible by both numbers.
Least Common Multiple (LCM) of 3915 and 3919 is 15342885.
LCM(3915,3919) = 15342885
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 3915 and 3919. First we will calculate the prime factors of 3915 and 3919.
Prime Factorization of 3915
3 | 3915 |
3 | 1305 |
3 | 435 |
5 | 145 |
29 | 29 |
1 |
Prime factors of 3915 are 3, 5,29. Prime factorization of 3915 in exponential form is:
3915 = 33×51×291
Prime Factorization of 3919
3919 | 3919 |
1 |
Prime factors of 3919 are 3919. Prime factorization of 3919 in exponential form is:
3919 = 39191
Now multiplying the highest exponent prime factors to calculate the LCM of 3915 and 3919.
LCM(3915,3919) = 33×51×291×39191
LCM(3915,3919) = 15342885
Factors of 3915
List of positive integer factors of 3915 that divides 3915 without a remainder.
1, 3, 5, 9, 15, 27, 29, 45, 87, 135, 145, 261, 435, 783, 1305, 3915
Factors of 3919
List of positive integer factors of 3919 that divides 3919 without a remainder.
1, 3919
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3915 and 3919, than apply into the LCM equation.
GCF(3915,3919) = 1
LCM(3915,3919) = ( 3915 × 3919) / 1
LCM(3915,3919) = 15342885 / 1
LCM(3915,3919) = 15342885
(i) The LCM of 3919 and 3915 is associative
LCM of 3915 and 3919 = LCM of 3919 and 3915
1. What is the LCM of 3915 and 3919?
Answer: LCM of 3915 and 3919 is 15342885.
2. What are the Factors of 3915?
Answer: Factors of 3915 are 1, 3, 5, 9, 15, 27, 29, 45, 87, 135, 145, 261, 435, 783, 1305, 3915. There are 16 integers that are factors of 3915. The greatest factor of 3915 is 3915.
3. What are the Factors of 3919?
Answer: Factors of 3919 are 1, 3919. There are 2 integers that are factors of 3919. The greatest factor of 3919 is 3919.
4. How to Find the LCM of 3915 and 3919?
Answer:
Least Common Multiple of 3915 and 3919 = 15342885
Step 1: Find the prime factorization of 3915
3915 = 3 x 3 x 3 x 5 x 29
Step 2: Find the prime factorization of 3919
3919 = 3919
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 15342885 = 3 x 3 x 3 x 5 x 29 x 3919
Step 4: Therefore, the least common multiple of 3915 and 3919 is 15342885.