Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1023 and 1028 the smallest integer that is 1051644 that is divisible by both numbers.
Least Common Multiple (LCM) of 1023 and 1028 is 1051644.
LCM(1023,1028) = 1051644
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 1023 and 1028. First we will calculate the prime factors of 1023 and 1028.
Prime Factorization of 1023
3 | 1023 |
11 | 341 |
31 | 31 |
1 |
Prime factors of 1023 are 3, 11,31. Prime factorization of 1023 in exponential form is:
1023 = 31×111×311
Prime Factorization of 1028
2 | 1028 |
2 | 514 |
257 | 257 |
1 |
Prime factors of 1028 are 2,257. Prime factorization of 1028 in exponential form is:
1028 = 22×2571
Now multiplying the highest exponent prime factors to calculate the LCM of 1023 and 1028.
LCM(1023,1028) = 22×31×111×311×2571
LCM(1023,1028) = 1051644
Factors of 1023
List of positive integer factors of 1023 that divides 1023 without a remainder.
1, 3, 11, 31, 33, 93, 341, 1023
Factors of 1028
List of positive integer factors of 1028 that divides 1028 without a remainder.
1, 2, 4, 257, 514, 1028
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1023 and 1028, than apply into the LCM equation.
GCF(1023,1028) = 1
LCM(1023,1028) = ( 1023 × 1028) / 1
LCM(1023,1028) = 1051644 / 1
LCM(1023,1028) = 1051644
(i) The LCM of 1028 and 1023 is associative
LCM of 1023 and 1028 = LCM of 1028 and 1023
1. What is the LCM of 1023 and 1028?
Answer: LCM of 1023 and 1028 is 1051644.
2. What are the Factors of 1023?
Answer: Factors of 1023 are 1, 3, 11, 31, 33, 93, 341, 1023. There are 8 integers that are factors of 1023. The greatest factor of 1023 is 1023.
3. What are the Factors of 1028?
Answer: Factors of 1028 are 1, 2, 4, 257, 514, 1028. There are 6 integers that are factors of 1028. The greatest factor of 1028 is 1028.
4. How to Find the LCM of 1023 and 1028?
Answer:
Least Common Multiple of 1023 and 1028 = 1051644
Step 1: Find the prime factorization of 1023
1023 = 3 x 11 x 31
Step 2: Find the prime factorization of 1028
1028 = 2 x 2 x 257
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1051644 = 2 x 2 x 3 x 11 x 31 x 257
Step 4: Therefore, the least common multiple of 1023 and 1028 is 1051644.