Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 7409 and 7415 the smallest integer that is 54937735 that is divisible by both numbers.
Least Common Multiple (LCM) of 7409 and 7415 is 54937735.
LCM(7409,7415) = 54937735
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 7409 and 7415. First we will calculate the prime factors of 7409 and 7415.
Prime Factorization of 7409
31 | 7409 |
239 | 239 |
1 |
Prime factors of 7409 are 31,239. Prime factorization of 7409 in exponential form is:
7409 = 311×2391
Prime Factorization of 7415
5 | 7415 |
1483 | 1483 |
1 |
Prime factors of 7415 are 5,1483. Prime factorization of 7415 in exponential form is:
7415 = 51×14831
Now multiplying the highest exponent prime factors to calculate the LCM of 7409 and 7415.
LCM(7409,7415) = 51×311×2391×14831
LCM(7409,7415) = 54937735
Factors of 7409
List of positive integer factors of 7409 that divides 7409 without a remainder.
1, 31, 239, 7409
Factors of 7415
List of positive integer factors of 7415 that divides 7415 without a remainder.
1, 5, 1483, 7415
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7409 and 7415, than apply into the LCM equation.
GCF(7409,7415) = 1
LCM(7409,7415) = ( 7409 × 7415) / 1
LCM(7409,7415) = 54937735 / 1
LCM(7409,7415) = 54937735
(i) The LCM of 7415 and 7409 is associative
LCM of 7409 and 7415 = LCM of 7415 and 7409
1. What is the LCM of 7409 and 7415?
Answer: LCM of 7409 and 7415 is 54937735.
2. What are the Factors of 7409?
Answer: Factors of 7409 are 1, 31, 239, 7409. There are 4 integers that are factors of 7409. The greatest factor of 7409 is 7409.
3. What are the Factors of 7415?
Answer: Factors of 7415 are 1, 5, 1483, 7415. There are 4 integers that are factors of 7415. The greatest factor of 7415 is 7415.
4. How to Find the LCM of 7409 and 7415?
Answer:
Least Common Multiple of 7409 and 7415 = 54937735
Step 1: Find the prime factorization of 7409
7409 = 31 x 239
Step 2: Find the prime factorization of 7415
7415 = 5 x 1483
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 54937735 = 5 x 31 x 239 x 1483
Step 4: Therefore, the least common multiple of 7409 and 7415 is 54937735.