Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1616 and 1621 the smallest integer that is 2619536 that is divisible by both numbers.
Least Common Multiple (LCM) of 1616 and 1621 is 2619536.
LCM(1616,1621) = 2619536
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 1616 and 1621. First we will calculate the prime factors of 1616 and 1621.
Prime Factorization of 1616
2 | 1616 |
2 | 808 |
2 | 404 |
2 | 202 |
101 | 101 |
1 |
Prime factors of 1616 are 2,101. Prime factorization of 1616 in exponential form is:
1616 = 24×1011
Prime Factorization of 1621
1621 | 1621 |
1 |
Prime factors of 1621 are 1621. Prime factorization of 1621 in exponential form is:
1621 = 16211
Now multiplying the highest exponent prime factors to calculate the LCM of 1616 and 1621.
LCM(1616,1621) = 24×1011×16211
LCM(1616,1621) = 2619536
Factors of 1616
List of positive integer factors of 1616 that divides 1616 without a remainder.
1, 2, 4, 8, 16, 101, 202, 404, 808, 1616
Factors of 1621
List of positive integer factors of 1621 that divides 1621 without a remainder.
1, 1621
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1616 and 1621, than apply into the LCM equation.
GCF(1616,1621) = 1
LCM(1616,1621) = ( 1616 × 1621) / 1
LCM(1616,1621) = 2619536 / 1
LCM(1616,1621) = 2619536
(i) The LCM of 1621 and 1616 is associative
LCM of 1616 and 1621 = LCM of 1621 and 1616
1. What is the LCM of 1616 and 1621?
Answer: LCM of 1616 and 1621 is 2619536.
2. What are the Factors of 1616?
Answer: Factors of 1616 are 1, 2, 4, 8, 16, 101, 202, 404, 808, 1616. There are 10 integers that are factors of 1616. The greatest factor of 1616 is 1616.
3. 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.
4. How to Find the LCM of 1616 and 1621?
Answer:
Least Common Multiple of 1616 and 1621 = 2619536
Step 1: Find the prime factorization of 1616
1616 = 2 x 2 x 2 x 2 x 101
Step 2: Find the prime factorization of 1621
1621 = 1621
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 2619536 = 2 x 2 x 2 x 2 x 101 x 1621
Step 4: Therefore, the least common multiple of 1616 and 1621 is 2619536.