Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1615 and 1619 the smallest integer that is 2614685 that is divisible by both numbers.
Least Common Multiple (LCM) of 1615 and 1619 is 2614685.
LCM(1615,1619) = 2614685
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 1615 and 1619. First we will calculate the prime factors of 1615 and 1619.
Prime Factorization of 1615
5 | 1615 |
17 | 323 |
19 | 19 |
1 |
Prime factors of 1615 are 5, 17,19. Prime factorization of 1615 in exponential form is:
1615 = 51×171×191
Prime Factorization of 1619
1619 | 1619 |
1 |
Prime factors of 1619 are 1619. Prime factorization of 1619 in exponential form is:
1619 = 16191
Now multiplying the highest exponent prime factors to calculate the LCM of 1615 and 1619.
LCM(1615,1619) = 51×171×191×16191
LCM(1615,1619) = 2614685
Factors of 1615
List of positive integer factors of 1615 that divides 1615 without a remainder.
1, 5, 17, 19, 85, 95, 323, 1615
Factors of 1619
List of positive integer factors of 1619 that divides 1619 without a remainder.
1, 1619
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1615 and 1619, than apply into the LCM equation.
GCF(1615,1619) = 1
LCM(1615,1619) = ( 1615 × 1619) / 1
LCM(1615,1619) = 2614685 / 1
LCM(1615,1619) = 2614685
(i) The LCM of 1619 and 1615 is associative
LCM of 1615 and 1619 = LCM of 1619 and 1615
1. What is the LCM of 1615 and 1619?
Answer: LCM of 1615 and 1619 is 2614685.
2. What are the Factors of 1615?
Answer: Factors of 1615 are 1, 5, 17, 19, 85, 95, 323, 1615. There are 8 integers that are factors of 1615. The greatest factor of 1615 is 1615.
3. What are the Factors of 1619?
Answer: Factors of 1619 are 1, 1619. There are 2 integers that are factors of 1619. The greatest factor of 1619 is 1619.
4. How to Find the LCM of 1615 and 1619?
Answer:
Least Common Multiple of 1615 and 1619 = 2614685
Step 1: Find the prime factorization of 1615
1615 = 5 x 17 x 19
Step 2: Find the prime factorization of 1619
1619 = 1619
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 2614685 = 5 x 17 x 19 x 1619
Step 4: Therefore, the least common multiple of 1615 and 1619 is 2614685.