Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1656 and 1664 the smallest integer that is 344448 that is divisible by both numbers.
Least Common Multiple (LCM) of 1656 and 1664 is 344448.
LCM(1656,1664) = 344448
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 1656 and 1664. First we will calculate the prime factors of 1656 and 1664.
Prime Factorization of 1656
2 | 1656 |
2 | 828 |
2 | 414 |
3 | 207 |
3 | 69 |
23 | 23 |
1 |
Prime factors of 1656 are 2, 3,23. Prime factorization of 1656 in exponential form is:
1656 = 23×32×231
Prime Factorization of 1664
2 | 1664 |
2 | 832 |
2 | 416 |
2 | 208 |
2 | 104 |
2 | 52 |
2 | 26 |
13 | 13 |
1 |
Prime factors of 1664 are 2,13. Prime factorization of 1664 in exponential form is:
1664 = 27×131
Now multiplying the highest exponent prime factors to calculate the LCM of 1656 and 1664.
LCM(1656,1664) = 27×32×131×231
LCM(1656,1664) = 344448
Factors of 1656
List of positive integer factors of 1656 that divides 1656 without a remainder.
1, 2, 3, 4, 6, 8, 9, 12, 18, 23, 24, 36, 46, 69, 72, 92, 138, 184, 207, 276, 414, 552, 828, 1656
Factors of 1664
List of positive integer factors of 1664 that divides 1664 without a remainder.
1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1656 and 1664, than apply into the LCM equation.
GCF(1656,1664) = 8
LCM(1656,1664) = ( 1656 × 1664) / 8
LCM(1656,1664) = 2755584 / 8
LCM(1656,1664) = 344448
(i) The LCM of 1664 and 1656 is associative
LCM of 1656 and 1664 = LCM of 1664 and 1656
1. What is the LCM of 1656 and 1664?
Answer: LCM of 1656 and 1664 is 344448.
2. What are the Factors of 1656?
Answer: Factors of 1656 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 23, 24, 36, 46, 69, 72, 92, 138, 184, 207, 276, 414, 552, 828, 1656. There are 24 integers that are factors of 1656. The greatest factor of 1656 is 1656.
3. What are the Factors of 1664?
Answer: Factors of 1664 are 1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664. There are 16 integers that are factors of 1664. The greatest factor of 1664 is 1664.
4. How to Find the LCM of 1656 and 1664?
Answer:
Least Common Multiple of 1656 and 1664 = 344448
Step 1: Find the prime factorization of 1656
1656 = 2 x 2 x 2 x 3 x 3 x 23
Step 2: Find the prime factorization of 1664
1664 = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 13
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 344448 = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 13 x 23
Step 4: Therefore, the least common multiple of 1656 and 1664 is 344448.