Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1015 and 1021 the smallest integer that is 1036315 that is divisible by both numbers.
Least Common Multiple (LCM) of 1015 and 1021 is 1036315.
LCM(1015,1021) = 1036315
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 1015 and 1021. First we will calculate the prime factors of 1015 and 1021.
Prime Factorization of 1015
5 | 1015 |
7 | 203 |
29 | 29 |
1 |
Prime factors of 1015 are 5, 7,29. Prime factorization of 1015 in exponential form is:
1015 = 51×71×291
Prime Factorization of 1021
1021 | 1021 |
1 |
Prime factors of 1021 are 1021. Prime factorization of 1021 in exponential form is:
1021 = 10211
Now multiplying the highest exponent prime factors to calculate the LCM of 1015 and 1021.
LCM(1015,1021) = 51×71×291×10211
LCM(1015,1021) = 1036315
Factors of 1015
List of positive integer factors of 1015 that divides 1015 without a remainder.
1, 5, 7, 29, 35, 145, 203, 1015
Factors of 1021
List of positive integer factors of 1021 that divides 1021 without a remainder.
1, 1021
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1015 and 1021, than apply into the LCM equation.
GCF(1015,1021) = 1
LCM(1015,1021) = ( 1015 × 1021) / 1
LCM(1015,1021) = 1036315 / 1
LCM(1015,1021) = 1036315
(i) The LCM of 1021 and 1015 is associative
LCM of 1015 and 1021 = LCM of 1021 and 1015
1. What is the LCM of 1015 and 1021?
Answer: LCM of 1015 and 1021 is 1036315.
2. What are the Factors of 1015?
Answer: Factors of 1015 are 1, 5, 7, 29, 35, 145, 203, 1015. There are 8 integers that are factors of 1015. The greatest factor of 1015 is 1015.
3. What are the Factors of 1021?
Answer: Factors of 1021 are 1, 1021. There are 2 integers that are factors of 1021. The greatest factor of 1021 is 1021.
4. How to Find the LCM of 1015 and 1021?
Answer:
Least Common Multiple of 1015 and 1021 = 1036315
Step 1: Find the prime factorization of 1015
1015 = 5 x 7 x 29
Step 2: Find the prime factorization of 1021
1021 = 1021
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1036315 = 5 x 7 x 29 x 1021
Step 4: Therefore, the least common multiple of 1015 and 1021 is 1036315.