Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 7643 and 7647 the smallest integer that is 58446021 that is divisible by both numbers.
Least Common Multiple (LCM) of 7643 and 7647 is 58446021.
LCM(7643,7647) = 58446021
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 7643 and 7647. First we will calculate the prime factors of 7643 and 7647.
Prime Factorization of 7643
7643 | 7643 |
1 |
Prime factors of 7643 are 7643. Prime factorization of 7643 in exponential form is:
7643 = 76431
Prime Factorization of 7647
3 | 7647 |
2549 | 2549 |
1 |
Prime factors of 7647 are 3,2549. Prime factorization of 7647 in exponential form is:
7647 = 31×25491
Now multiplying the highest exponent prime factors to calculate the LCM of 7643 and 7647.
LCM(7643,7647) = 31×25491×76431
LCM(7643,7647) = 58446021
Factors of 7643
List of positive integer factors of 7643 that divides 7643 without a remainder.
1, 7643
Factors of 7647
List of positive integer factors of 7647 that divides 7647 without a remainder.
1, 3, 2549, 7647
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7643 and 7647, than apply into the LCM equation.
GCF(7643,7647) = 1
LCM(7643,7647) = ( 7643 × 7647) / 1
LCM(7643,7647) = 58446021 / 1
LCM(7643,7647) = 58446021
(i) The LCM of 7647 and 7643 is associative
LCM of 7643 and 7647 = LCM of 7647 and 7643
1. What is the LCM of 7643 and 7647?
Answer: LCM of 7643 and 7647 is 58446021.
2. What are the Factors of 7643?
Answer: Factors of 7643 are 1, 7643. There are 2 integers that are factors of 7643. The greatest factor of 7643 is 7643.
3. What are the Factors of 7647?
Answer: Factors of 7647 are 1, 3, 2549, 7647. There are 4 integers that are factors of 7647. The greatest factor of 7647 is 7647.
4. How to Find the LCM of 7643 and 7647?
Answer:
Least Common Multiple of 7643 and 7647 = 58446021
Step 1: Find the prime factorization of 7643
7643 = 7643
Step 2: Find the prime factorization of 7647
7647 = 3 x 2549
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 58446021 = 3 x 2549 x 7643
Step 4: Therefore, the least common multiple of 7643 and 7647 is 58446021.