Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 7732 and 7740 the smallest integer that is 14961420 that is divisible by both numbers.
Least Common Multiple (LCM) of 7732 and 7740 is 14961420.
LCM(7732,7740) = 14961420
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 7732 and 7740. First we will calculate the prime factors of 7732 and 7740.
Prime Factorization of 7732
2 | 7732 |
2 | 3866 |
1933 | 1933 |
1 |
Prime factors of 7732 are 2,1933. Prime factorization of 7732 in exponential form is:
7732 = 22×19331
Prime Factorization of 7740
2 | 7740 |
2 | 3870 |
3 | 1935 |
3 | 645 |
5 | 215 |
43 | 43 |
1 |
Prime factors of 7740 are 2, 3, 5,43. Prime factorization of 7740 in exponential form is:
7740 = 22×32×51×431
Now multiplying the highest exponent prime factors to calculate the LCM of 7732 and 7740.
LCM(7732,7740) = 22×32×51×431×19331
LCM(7732,7740) = 14961420
Factors of 7732
List of positive integer factors of 7732 that divides 7732 without a remainder.
1, 2, 4, 1933, 3866, 7732
Factors of 7740
List of positive integer factors of 7740 that divides 7740 without a remainder.
1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 7740
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7732 and 7740, than apply into the LCM equation.
GCF(7732,7740) = 4
LCM(7732,7740) = ( 7732 × 7740) / 4
LCM(7732,7740) = 59845680 / 4
LCM(7732,7740) = 14961420
(i) The LCM of 7740 and 7732 is associative
LCM of 7732 and 7740 = LCM of 7740 and 7732
1. What is the LCM of 7732 and 7740?
Answer: LCM of 7732 and 7740 is 14961420.
2. What are the Factors of 7732?
Answer: Factors of 7732 are 1, 2, 4, 1933, 3866, 7732. There are 6 integers that are factors of 7732. The greatest factor of 7732 is 7732.
3. What are the Factors of 7740?
Answer: Factors of 7740 are 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 7740. There are 36 integers that are factors of 7740. The greatest factor of 7740 is 7740.
4. How to Find the LCM of 7732 and 7740?
Answer:
Least Common Multiple of 7732 and 7740 = 14961420
Step 1: Find the prime factorization of 7732
7732 = 2 x 2 x 1933
Step 2: Find the prime factorization of 7740
7740 = 2 x 2 x 3 x 3 x 5 x 43
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 14961420 = 2 x 2 x 3 x 3 x 5 x 43 x 1933
Step 4: Therefore, the least common multiple of 7732 and 7740 is 14961420.