Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 7680 and 7687 the smallest integer that is 59036160 that is divisible by both numbers.
Least Common Multiple (LCM) of 7680 and 7687 is 59036160.
LCM(7680,7687) = 59036160
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 7680 and 7687. First we will calculate the prime factors of 7680 and 7687.
Prime Factorization of 7680
2 | 7680 |
2 | 3840 |
2 | 1920 |
2 | 960 |
2 | 480 |
2 | 240 |
2 | 120 |
2 | 60 |
2 | 30 |
3 | 15 |
5 | 5 |
1 |
Prime factors of 7680 are 2, 3,5. Prime factorization of 7680 in exponential form is:
7680 = 29×31×51
Prime Factorization of 7687
7687 | 7687 |
1 |
Prime factors of 7687 are 7687. Prime factorization of 7687 in exponential form is:
7687 = 76871
Now multiplying the highest exponent prime factors to calculate the LCM of 7680 and 7687.
LCM(7680,7687) = 29×31×51×76871
LCM(7680,7687) = 59036160
Factors of 7680
List of positive integer factors of 7680 that divides 7680 without a remainder.
1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 512, 640, 768, 960, 1280, 1536, 1920, 2560, 3840, 7680
Factors of 7687
List of positive integer factors of 7687 that divides 7687 without a remainder.
1, 7687
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7680 and 7687, than apply into the LCM equation.
GCF(7680,7687) = 1
LCM(7680,7687) = ( 7680 × 7687) / 1
LCM(7680,7687) = 59036160 / 1
LCM(7680,7687) = 59036160
(i) The LCM of 7687 and 7680 is associative
LCM of 7680 and 7687 = LCM of 7687 and 7680
1. What is the LCM of 7680 and 7687?
Answer: LCM of 7680 and 7687 is 59036160.
2. What are the Factors of 7680?
Answer: Factors of 7680 are 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 512, 640, 768, 960, 1280, 1536, 1920, 2560, 3840, 7680. There are 40 integers that are factors of 7680. The greatest factor of 7680 is 7680.
3. What are the Factors of 7687?
Answer: Factors of 7687 are 1, 7687. There are 2 integers that are factors of 7687. The greatest factor of 7687 is 7687.
4. How to Find the LCM of 7680 and 7687?
Answer:
Least Common Multiple of 7680 and 7687 = 59036160
Step 1: Find the prime factorization of 7680
7680 = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 5
Step 2: Find the prime factorization of 7687
7687 = 7687
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 59036160 = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 5 x 7687
Step 4: Therefore, the least common multiple of 7680 and 7687 is 59036160.