Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1621 and 1624 the smallest integer that is 2632504 that is divisible by both numbers.
Least Common Multiple (LCM) of 1621 and 1624 is 2632504.
LCM(1621,1624) = 2632504
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 1621 and 1624. First we will calculate the prime factors of 1621 and 1624.
Prime Factorization of 1621
1621 | 1621 |
1 |
Prime factors of 1621 are 1621. Prime factorization of 1621 in exponential form is:
1621 = 16211
Prime Factorization of 1624
2 | 1624 |
2 | 812 |
2 | 406 |
7 | 203 |
29 | 29 |
1 |
Prime factors of 1624 are 2, 7,29. Prime factorization of 1624 in exponential form is:
1624 = 23×71×291
Now multiplying the highest exponent prime factors to calculate the LCM of 1621 and 1624.
LCM(1621,1624) = 23×71×291×16211
LCM(1621,1624) = 2632504
Factors of 1621
List of positive integer factors of 1621 that divides 1621 without a remainder.
1, 1621
Factors of 1624
List of positive integer factors of 1624 that divides 1624 without a remainder.
1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 116, 203, 232, 406, 812, 1624
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1621 and 1624, than apply into the LCM equation.
GCF(1621,1624) = 1
LCM(1621,1624) = ( 1621 × 1624) / 1
LCM(1621,1624) = 2632504 / 1
LCM(1621,1624) = 2632504
(i) The LCM of 1624 and 1621 is associative
LCM of 1621 and 1624 = LCM of 1624 and 1621
1. What is the LCM of 1621 and 1624?
Answer: LCM of 1621 and 1624 is 2632504.
2. What are the Factors of 1621?
Answer: Factors of 1621 are 1, 1621. There are 2 integers that are factors of 1621. The greatest factor of 1621 is 1621.
3. What are the Factors of 1624?
Answer: Factors of 1624 are 1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 116, 203, 232, 406, 812, 1624. There are 16 integers that are factors of 1624. The greatest factor of 1624 is 1624.
4. How to Find the LCM of 1621 and 1624?
Answer:
Least Common Multiple of 1621 and 1624 = 2632504
Step 1: Find the prime factorization of 1621
1621 = 1621
Step 2: Find the prime factorization of 1624
1624 = 2 x 2 x 2 x 7 x 29
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 2632504 = 2 x 2 x 2 x 7 x 29 x 1621
Step 4: Therefore, the least common multiple of 1621 and 1624 is 2632504.