Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 8723 and 8728 the smallest integer that is 76134344 that is divisible by both numbers.
Least Common Multiple (LCM) of 8723 and 8728 is 76134344.
LCM(8723,8728) = 76134344
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 8723 and 8728. First we will calculate the prime factors of 8723 and 8728.
Prime Factorization of 8723
11 | 8723 |
13 | 793 |
61 | 61 |
1 |
Prime factors of 8723 are 11, 13,61. Prime factorization of 8723 in exponential form is:
8723 = 111×131×611
Prime Factorization of 8728
2 | 8728 |
2 | 4364 |
2 | 2182 |
1091 | 1091 |
1 |
Prime factors of 8728 are 2,1091. Prime factorization of 8728 in exponential form is:
8728 = 23×10911
Now multiplying the highest exponent prime factors to calculate the LCM of 8723 and 8728.
LCM(8723,8728) = 23×111×131×611×10911
LCM(8723,8728) = 76134344
Factors of 8723
List of positive integer factors of 8723 that divides 8723 without a remainder.
1, 11, 13, 61, 143, 671, 793, 8723
Factors of 8728
List of positive integer factors of 8728 that divides 8728 without a remainder.
1, 2, 4, 8, 1091, 2182, 4364, 8728
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8723 and 8728, than apply into the LCM equation.
GCF(8723,8728) = 1
LCM(8723,8728) = ( 8723 × 8728) / 1
LCM(8723,8728) = 76134344 / 1
LCM(8723,8728) = 76134344
(i) The LCM of 8728 and 8723 is associative
LCM of 8723 and 8728 = LCM of 8728 and 8723
1. What is the LCM of 8723 and 8728?
Answer: LCM of 8723 and 8728 is 76134344.
2. What are the Factors of 8723?
Answer: Factors of 8723 are 1, 11, 13, 61, 143, 671, 793, 8723. There are 8 integers that are factors of 8723. The greatest factor of 8723 is 8723.
3. What are the Factors of 8728?
Answer: Factors of 8728 are 1, 2, 4, 8, 1091, 2182, 4364, 8728. There are 8 integers that are factors of 8728. The greatest factor of 8728 is 8728.
4. How to Find the LCM of 8723 and 8728?
Answer:
Least Common Multiple of 8723 and 8728 = 76134344
Step 1: Find the prime factorization of 8723
8723 = 11 x 13 x 61
Step 2: Find the prime factorization of 8728
8728 = 2 x 2 x 2 x 1091
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 76134344 = 2 x 2 x 2 x 11 x 13 x 61 x 1091
Step 4: Therefore, the least common multiple of 8723 and 8728 is 76134344.