Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 7724 and 7731 the smallest integer that is 59714244 that is divisible by both numbers.
Least Common Multiple (LCM) of 7724 and 7731 is 59714244.
LCM(7724,7731) = 59714244
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 7724 and 7731. First we will calculate the prime factors of 7724 and 7731.
Prime Factorization of 7724
2 | 7724 |
2 | 3862 |
1931 | 1931 |
1 |
Prime factors of 7724 are 2,1931. Prime factorization of 7724 in exponential form is:
7724 = 22×19311
Prime Factorization of 7731
3 | 7731 |
3 | 2577 |
859 | 859 |
1 |
Prime factors of 7731 are 3,859. Prime factorization of 7731 in exponential form is:
7731 = 32×8591
Now multiplying the highest exponent prime factors to calculate the LCM of 7724 and 7731.
LCM(7724,7731) = 22×32×8591×19311
LCM(7724,7731) = 59714244
Factors of 7724
List of positive integer factors of 7724 that divides 7724 without a remainder.
1, 2, 4, 1931, 3862, 7724
Factors of 7731
List of positive integer factors of 7731 that divides 7731 without a remainder.
1, 3, 9, 859, 2577, 7731
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7724 and 7731, than apply into the LCM equation.
GCF(7724,7731) = 1
LCM(7724,7731) = ( 7724 × 7731) / 1
LCM(7724,7731) = 59714244 / 1
LCM(7724,7731) = 59714244
(i) The LCM of 7731 and 7724 is associative
LCM of 7724 and 7731 = LCM of 7731 and 7724
1. What is the LCM of 7724 and 7731?
Answer: LCM of 7724 and 7731 is 59714244.
2. What are the Factors of 7724?
Answer: Factors of 7724 are 1, 2, 4, 1931, 3862, 7724. There are 6 integers that are factors of 7724. The greatest factor of 7724 is 7724.
3. What are the Factors of 7731?
Answer: Factors of 7731 are 1, 3, 9, 859, 2577, 7731. There are 6 integers that are factors of 7731. The greatest factor of 7731 is 7731.
4. How to Find the LCM of 7724 and 7731?
Answer:
Least Common Multiple of 7724 and 7731 = 59714244
Step 1: Find the prime factorization of 7724
7724 = 2 x 2 x 1931
Step 2: Find the prime factorization of 7731
7731 = 3 x 3 x 859
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 59714244 = 2 x 2 x 3 x 3 x 859 x 1931
Step 4: Therefore, the least common multiple of 7724 and 7731 is 59714244.