Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 617 and 621 the smallest integer that is 383157 that is divisible by both numbers.
Least Common Multiple (LCM) of 617 and 621 is 383157.
LCM(617,621) = 383157
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 617 and 621. First we will calculate the prime factors of 617 and 621.
Prime Factorization of 617
617 | 617 |
1 |
Prime factors of 617 are 617. Prime factorization of 617 in exponential form is:
617 = 6171
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 617 and 621.
LCM(617,621) = 33×231×6171
LCM(617,621) = 383157
Factors of 617
List of positive integer factors of 617 that divides 617 without a remainder.
1, 617
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 617 and 621, than apply into the LCM equation.
GCF(617,621) = 1
LCM(617,621) = ( 617 × 621) / 1
LCM(617,621) = 383157 / 1
LCM(617,621) = 383157
(i) The LCM of 621 and 617 is associative
LCM of 617 and 621 = LCM of 621 and 617
1. What is the LCM of 617 and 621?
Answer: LCM of 617 and 621 is 383157.
2. What are the Factors of 617?
Answer: Factors of 617 are 1, 617. There are 2 integers that are factors of 617. The greatest factor of 617 is 617.
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 617 and 621?
Answer:
Least Common Multiple of 617 and 621 = 383157
Step 1: Find the prime factorization of 617
617 = 617
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 = 383157 = 3 x 3 x 3 x 23 x 617
Step 4: Therefore, the least common multiple of 617 and 621 is 383157.