Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1612 and 1620 the smallest integer that is 652860 that is divisible by both numbers.
Least Common Multiple (LCM) of 1612 and 1620 is 652860.
LCM(1612,1620) = 652860
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 1612 and 1620. First we will calculate the prime factors of 1612 and 1620.
Prime Factorization of 1612
2 | 1612 |
2 | 806 |
13 | 403 |
31 | 31 |
1 |
Prime factors of 1612 are 2, 13,31. Prime factorization of 1612 in exponential form is:
1612 = 22×131×311
Prime Factorization of 1620
2 | 1620 |
2 | 810 |
3 | 405 |
3 | 135 |
3 | 45 |
3 | 15 |
5 | 5 |
1 |
Prime factors of 1620 are 2, 3,5. Prime factorization of 1620 in exponential form is:
1620 = 22×34×51
Now multiplying the highest exponent prime factors to calculate the LCM of 1612 and 1620.
LCM(1612,1620) = 22×34×51×131×311
LCM(1612,1620) = 652860
Factors of 1612
List of positive integer factors of 1612 that divides 1612 without a remainder.
1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612
Factors of 1620
List of positive integer factors of 1620 that divides 1620 without a remainder.
1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1612 and 1620, than apply into the LCM equation.
GCF(1612,1620) = 4
LCM(1612,1620) = ( 1612 × 1620) / 4
LCM(1612,1620) = 2611440 / 4
LCM(1612,1620) = 652860
(i) The LCM of 1620 and 1612 is associative
LCM of 1612 and 1620 = LCM of 1620 and 1612
1. What is the LCM of 1612 and 1620?
Answer: LCM of 1612 and 1620 is 652860.
2. What are the Factors of 1612?
Answer: Factors of 1612 are 1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612. There are 12 integers that are factors of 1612. The greatest factor of 1612 is 1612.
3. What are the Factors of 1620?
Answer: Factors of 1620 are 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620. There are 30 integers that are factors of 1620. The greatest factor of 1620 is 1620.
4. How to Find the LCM of 1612 and 1620?
Answer:
Least Common Multiple of 1612 and 1620 = 652860
Step 1: Find the prime factorization of 1612
1612 = 2 x 2 x 13 x 31
Step 2: Find the prime factorization of 1620
1620 = 2 x 2 x 3 x 3 x 3 x 3 x 5
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 652860 = 2 x 2 x 3 x 3 x 3 x 3 x 5 x 13 x 31
Step 4: Therefore, the least common multiple of 1612 and 1620 is 652860.