Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1569 and 1575 the smallest integer that is 823725 that is divisible by both numbers.
Least Common Multiple (LCM) of 1569 and 1575 is 823725.
LCM(1569,1575) = 823725
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 1569 and 1575. First we will calculate the prime factors of 1569 and 1575.
Prime Factorization of 1569
3 | 1569 |
523 | 523 |
1 |
Prime factors of 1569 are 3,523. Prime factorization of 1569 in exponential form is:
1569 = 31×5231
Prime Factorization of 1575
3 | 1575 |
3 | 525 |
5 | 175 |
5 | 35 |
7 | 7 |
1 |
Prime factors of 1575 are 3, 5,7. Prime factorization of 1575 in exponential form is:
1575 = 32×52×71
Now multiplying the highest exponent prime factors to calculate the LCM of 1569 and 1575.
LCM(1569,1575) = 32×52×71×5231
LCM(1569,1575) = 823725
Factors of 1569
List of positive integer factors of 1569 that divides 1569 without a remainder.
1, 3, 523, 1569
Factors of 1575
List of positive integer factors of 1575 that divides 1575 without a remainder.
1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 175, 225, 315, 525, 1575
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1569 and 1575, than apply into the LCM equation.
GCF(1569,1575) = 3
LCM(1569,1575) = ( 1569 × 1575) / 3
LCM(1569,1575) = 2471175 / 3
LCM(1569,1575) = 823725
(i) The LCM of 1575 and 1569 is associative
LCM of 1569 and 1575 = LCM of 1575 and 1569
1. What is the LCM of 1569 and 1575?
Answer: LCM of 1569 and 1575 is 823725.
2. What are the Factors of 1569?
Answer: Factors of 1569 are 1, 3, 523, 1569. There are 4 integers that are factors of 1569. The greatest factor of 1569 is 1569.
3. What are the Factors of 1575?
Answer: Factors of 1575 are 1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 175, 225, 315, 525, 1575. There are 18 integers that are factors of 1575. The greatest factor of 1575 is 1575.
4. How to Find the LCM of 1569 and 1575?
Answer:
Least Common Multiple of 1569 and 1575 = 823725
Step 1: Find the prime factorization of 1569
1569 = 3 x 523
Step 2: Find the prime factorization of 1575
1575 = 3 x 3 x 5 x 5 x 7
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 823725 = 3 x 3 x 5 x 5 x 7 x 523
Step 4: Therefore, the least common multiple of 1569 and 1575 is 823725.