Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 7788 and 7789 the smallest integer that is 60660732 that is divisible by both numbers.
Least Common Multiple (LCM) of 7788 and 7789 is 60660732.
LCM(7788,7789) = 60660732
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 7788 and 7789. First we will calculate the prime factors of 7788 and 7789.
Prime Factorization of 7788
2 | 7788 |
2 | 3894 |
3 | 1947 |
11 | 649 |
59 | 59 |
1 |
Prime factors of 7788 are 2, 3, 11,59. Prime factorization of 7788 in exponential form is:
7788 = 22×31×111×591
Prime Factorization of 7789
7789 | 7789 |
1 |
Prime factors of 7789 are 7789. Prime factorization of 7789 in exponential form is:
7789 = 77891
Now multiplying the highest exponent prime factors to calculate the LCM of 7788 and 7789.
LCM(7788,7789) = 22×31×111×591×77891
LCM(7788,7789) = 60660732
Factors of 7788
List of positive integer factors of 7788 that divides 7788 without a remainder.
1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 59, 66, 118, 132, 177, 236, 354, 649, 708, 1298, 1947, 2596, 3894, 7788
Factors of 7789
List of positive integer factors of 7789 that divides 7789 without a remainder.
1, 7789
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7788 and 7789, than apply into the LCM equation.
GCF(7788,7789) = 1
LCM(7788,7789) = ( 7788 × 7789) / 1
LCM(7788,7789) = 60660732 / 1
LCM(7788,7789) = 60660732
(i) The LCM of 7789 and 7788 is associative
LCM of 7788 and 7789 = LCM of 7789 and 7788
1. What is the LCM of 7788 and 7789?
Answer: LCM of 7788 and 7789 is 60660732.
2. What are the Factors of 7788?
Answer: Factors of 7788 are 1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 59, 66, 118, 132, 177, 236, 354, 649, 708, 1298, 1947, 2596, 3894, 7788. There are 24 integers that are factors of 7788. The greatest factor of 7788 is 7788.
3. What are the Factors of 7789?
Answer: Factors of 7789 are 1, 7789. There are 2 integers that are factors of 7789. The greatest factor of 7789 is 7789.
4. How to Find the LCM of 7788 and 7789?
Answer:
Least Common Multiple of 7788 and 7789 = 60660732
Step 1: Find the prime factorization of 7788
7788 = 2 x 2 x 3 x 11 x 59
Step 2: Find the prime factorization of 7789
7789 = 7789
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 60660732 = 2 x 2 x 3 x 11 x 59 x 7789
Step 4: Therefore, the least common multiple of 7788 and 7789 is 60660732.