Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 619 and 621 the smallest integer that is 384399 that is divisible by both numbers.
Least Common Multiple (LCM) of 619 and 621 is 384399.
LCM(619,621) = 384399
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 619 and 621. First we will calculate the prime factors of 619 and 621.
Prime Factorization of 619
619 | 619 |
1 |
Prime factors of 619 are 619. Prime factorization of 619 in exponential form is:
619 = 6191
Prime Factorization of 621
3 | 621 |
3 | 207 |
3 | 69 |
23 | 23 |
1 |
Prime factors of 621 are 3,23. Prime factorization of 621 in exponential form is:
621 = 33×231
Now multiplying the highest exponent prime factors to calculate the LCM of 619 and 621.
LCM(619,621) = 33×231×6191
LCM(619,621) = 384399
Factors of 619
List of positive integer factors of 619 that divides 619 without a remainder.
1, 619
Factors of 621
List of positive integer factors of 621 that divides 621 without a remainder.
1, 3, 9, 23, 27, 69, 207, 621
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 619 and 621, than apply into the LCM equation.
GCF(619,621) = 1
LCM(619,621) = ( 619 × 621) / 1
LCM(619,621) = 384399 / 1
LCM(619,621) = 384399
(i) The LCM of 621 and 619 is associative
LCM of 619 and 621 = LCM of 621 and 619
1. What is the LCM of 619 and 621?
Answer: LCM of 619 and 621 is 384399.
2. What are the Factors of 619?
Answer: Factors of 619 are 1, 619. There are 2 integers that are factors of 619. The greatest factor of 619 is 619.
3. What are the Factors of 621?
Answer: Factors of 621 are 1, 3, 9, 23, 27, 69, 207, 621. There are 8 integers that are factors of 621. The greatest factor of 621 is 621.
4. How to Find the LCM of 619 and 621?
Answer:
Least Common Multiple of 619 and 621 = 384399
Step 1: Find the prime factorization of 619
619 = 619
Step 2: Find the prime factorization of 621
621 = 3 x 3 x 3 x 23
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 384399 = 3 x 3 x 3 x 23 x 619
Step 4: Therefore, the least common multiple of 619 and 621 is 384399.