Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 7285 and 7288 the smallest integer that is 53093080 that is divisible by both numbers.
Least Common Multiple (LCM) of 7285 and 7288 is 53093080.
LCM(7285,7288) = 53093080
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 7285 and 7288. First we will calculate the prime factors of 7285 and 7288.
Prime Factorization of 7285
5 | 7285 |
31 | 1457 |
47 | 47 |
1 |
Prime factors of 7285 are 5, 31,47. Prime factorization of 7285 in exponential form is:
7285 = 51×311×471
Prime Factorization of 7288
2 | 7288 |
2 | 3644 |
2 | 1822 |
911 | 911 |
1 |
Prime factors of 7288 are 2,911. Prime factorization of 7288 in exponential form is:
7288 = 23×9111
Now multiplying the highest exponent prime factors to calculate the LCM of 7285 and 7288.
LCM(7285,7288) = 23×51×311×471×9111
LCM(7285,7288) = 53093080
Factors of 7285
List of positive integer factors of 7285 that divides 7285 without a remainder.
1, 5, 31, 47, 155, 235, 1457, 7285
Factors of 7288
List of positive integer factors of 7288 that divides 7288 without a remainder.
1, 2, 4, 8, 911, 1822, 3644, 7288
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7285 and 7288, than apply into the LCM equation.
GCF(7285,7288) = 1
LCM(7285,7288) = ( 7285 × 7288) / 1
LCM(7285,7288) = 53093080 / 1
LCM(7285,7288) = 53093080
(i) The LCM of 7288 and 7285 is associative
LCM of 7285 and 7288 = LCM of 7288 and 7285
1. What is the LCM of 7285 and 7288?
Answer: LCM of 7285 and 7288 is 53093080.
2. What are the Factors of 7285?
Answer: Factors of 7285 are 1, 5, 31, 47, 155, 235, 1457, 7285. There are 8 integers that are factors of 7285. The greatest factor of 7285 is 7285.
3. What are the Factors of 7288?
Answer: Factors of 7288 are 1, 2, 4, 8, 911, 1822, 3644, 7288. There are 8 integers that are factors of 7288. The greatest factor of 7288 is 7288.
4. How to Find the LCM of 7285 and 7288?
Answer:
Least Common Multiple of 7285 and 7288 = 53093080
Step 1: Find the prime factorization of 7285
7285 = 5 x 31 x 47
Step 2: Find the prime factorization of 7288
7288 = 2 x 2 x 2 x 911
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 53093080 = 2 x 2 x 2 x 5 x 31 x 47 x 911
Step 4: Therefore, the least common multiple of 7285 and 7288 is 53093080.