Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 3643 and 3647 the smallest integer that is 13286021 that is divisible by both numbers.
Least Common Multiple (LCM) of 3643 and 3647 is 13286021.
LCM(3643,3647) = 13286021
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 3643 and 3647. First we will calculate the prime factors of 3643 and 3647.
Prime Factorization of 3643
3643 | 3643 |
1 |
Prime factors of 3643 are 3643. Prime factorization of 3643 in exponential form is:
3643 = 36431
Prime Factorization of 3647
7 | 3647 |
521 | 521 |
1 |
Prime factors of 3647 are 7,521. Prime factorization of 3647 in exponential form is:
3647 = 71×5211
Now multiplying the highest exponent prime factors to calculate the LCM of 3643 and 3647.
LCM(3643,3647) = 71×5211×36431
LCM(3643,3647) = 13286021
Factors of 3643
List of positive integer factors of 3643 that divides 3643 without a remainder.
1, 3643
Factors of 3647
List of positive integer factors of 3647 that divides 3647 without a remainder.
1, 7, 521, 3647
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3643 and 3647, than apply into the LCM equation.
GCF(3643,3647) = 1
LCM(3643,3647) = ( 3643 × 3647) / 1
LCM(3643,3647) = 13286021 / 1
LCM(3643,3647) = 13286021
(i) The LCM of 3647 and 3643 is associative
LCM of 3643 and 3647 = LCM of 3647 and 3643
1. What is the LCM of 3643 and 3647?
Answer: LCM of 3643 and 3647 is 13286021.
2. What are the Factors of 3643?
Answer: Factors of 3643 are 1, 3643. There are 2 integers that are factors of 3643. The greatest factor of 3643 is 3643.
3. What are the Factors of 3647?
Answer: Factors of 3647 are 1, 7, 521, 3647. There are 4 integers that are factors of 3647. The greatest factor of 3647 is 3647.
4. How to Find the LCM of 3643 and 3647?
Answer:
Least Common Multiple of 3643 and 3647 = 13286021
Step 1: Find the prime factorization of 3643
3643 = 3643
Step 2: Find the prime factorization of 3647
3647 = 7 x 521
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 13286021 = 7 x 521 x 3643
Step 4: Therefore, the least common multiple of 3643 and 3647 is 13286021.