Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 21522 and 21530 the smallest integer that is 231684330 that is divisible by both numbers.
Least Common Multiple (LCM) of 21522 and 21530 is 231684330.
LCM(21522,21530) = 231684330
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 21522 and 21530. First we will calculate the prime factors of 21522 and 21530.
Prime Factorization of 21522
2 | 21522 |
3 | 10761 |
17 | 3587 |
211 | 211 |
1 |
Prime factors of 21522 are 2, 3, 17,211. Prime factorization of 21522 in exponential form is:
21522 = 21×31×171×2111
Prime Factorization of 21530
2 | 21530 |
5 | 10765 |
2153 | 2153 |
1 |
Prime factors of 21530 are 2, 5,2153. Prime factorization of 21530 in exponential form is:
21530 = 21×51×21531
Now multiplying the highest exponent prime factors to calculate the LCM of 21522 and 21530.
LCM(21522,21530) = 21×31×51×171×2111×21531
LCM(21522,21530) = 231684330
Factors of 21522
List of positive integer factors of 21522 that divides 21522 without a remainder.
1, 2, 3, 6, 17, 34, 51, 102, 211, 422, 633, 1266, 3587, 7174, 10761, 21522
Factors of 21530
List of positive integer factors of 21530 that divides 21530 without a remainder.
1, 2, 5, 10, 2153, 4306, 10765, 21530
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21522 and 21530, than apply into the LCM equation.
GCF(21522,21530) = 2
LCM(21522,21530) = ( 21522 × 21530) / 2
LCM(21522,21530) = 463368660 / 2
LCM(21522,21530) = 231684330
(i) The LCM of 21530 and 21522 is associative
LCM of 21522 and 21530 = LCM of 21530 and 21522
1. What is the LCM of 21522 and 21530?
Answer: LCM of 21522 and 21530 is 231684330.
2. What are the Factors of 21522?
Answer: Factors of 21522 are 1, 2, 3, 6, 17, 34, 51, 102, 211, 422, 633, 1266, 3587, 7174, 10761, 21522. There are 16 integers that are factors of 21522. The greatest factor of 21522 is 21522.
3. What are the Factors of 21530?
Answer: Factors of 21530 are 1, 2, 5, 10, 2153, 4306, 10765, 21530. There are 8 integers that are factors of 21530. The greatest factor of 21530 is 21530.
4. How to Find the LCM of 21522 and 21530?
Answer:
Least Common Multiple of 21522 and 21530 = 231684330
Step 1: Find the prime factorization of 21522
21522 = 2 x 3 x 17 x 211
Step 2: Find the prime factorization of 21530
21530 = 2 x 5 x 2153
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 231684330 = 2 x 3 x 5 x 17 x 211 x 2153
Step 4: Therefore, the least common multiple of 21522 and 21530 is 231684330.