Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 7713 and 7720 the smallest integer that is 59544360 that is divisible by both numbers.
Least Common Multiple (LCM) of 7713 and 7720 is 59544360.
LCM(7713,7720) = 59544360
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 7713 and 7720. First we will calculate the prime factors of 7713 and 7720.
Prime Factorization of 7713
3 | 7713 |
3 | 2571 |
857 | 857 |
1 |
Prime factors of 7713 are 3,857. Prime factorization of 7713 in exponential form is:
7713 = 32×8571
Prime Factorization of 7720
2 | 7720 |
2 | 3860 |
2 | 1930 |
5 | 965 |
193 | 193 |
1 |
Prime factors of 7720 are 2, 5,193. Prime factorization of 7720 in exponential form is:
7720 = 23×51×1931
Now multiplying the highest exponent prime factors to calculate the LCM of 7713 and 7720.
LCM(7713,7720) = 23×32×51×1931×8571
LCM(7713,7720) = 59544360
Factors of 7713
List of positive integer factors of 7713 that divides 7713 without a remainder.
1, 3, 9, 857, 2571, 7713
Factors of 7720
List of positive integer factors of 7720 that divides 7720 without a remainder.
1, 2, 4, 5, 8, 10, 20, 40, 193, 386, 772, 965, 1544, 1930, 3860, 7720
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7713 and 7720, than apply into the LCM equation.
GCF(7713,7720) = 1
LCM(7713,7720) = ( 7713 × 7720) / 1
LCM(7713,7720) = 59544360 / 1
LCM(7713,7720) = 59544360
(i) The LCM of 7720 and 7713 is associative
LCM of 7713 and 7720 = LCM of 7720 and 7713
1. What is the LCM of 7713 and 7720?
Answer: LCM of 7713 and 7720 is 59544360.
2. What are the Factors of 7713?
Answer: Factors of 7713 are 1, 3, 9, 857, 2571, 7713. There are 6 integers that are factors of 7713. The greatest factor of 7713 is 7713.
3. What are the Factors of 7720?
Answer: Factors of 7720 are 1, 2, 4, 5, 8, 10, 20, 40, 193, 386, 772, 965, 1544, 1930, 3860, 7720. There are 16 integers that are factors of 7720. The greatest factor of 7720 is 7720.
4. How to Find the LCM of 7713 and 7720?
Answer:
Least Common Multiple of 7713 and 7720 = 59544360
Step 1: Find the prime factorization of 7713
7713 = 3 x 3 x 857
Step 2: Find the prime factorization of 7720
7720 = 2 x 2 x 2 x 5 x 193
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 59544360 = 2 x 2 x 2 x 3 x 3 x 5 x 193 x 857
Step 4: Therefore, the least common multiple of 7713 and 7720 is 59544360.