Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 21475 and 21481 the smallest integer that is 461304475 that is divisible by both numbers.
Least Common Multiple (LCM) of 21475 and 21481 is 461304475.
LCM(21475,21481) = 461304475
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 21475 and 21481. First we will calculate the prime factors of 21475 and 21481.
Prime Factorization of 21475
5 | 21475 |
5 | 4295 |
859 | 859 |
1 |
Prime factors of 21475 are 5,859. Prime factorization of 21475 in exponential form is:
21475 = 52×8591
Prime Factorization of 21481
21481 | 21481 |
1 |
Prime factors of 21481 are 21481. Prime factorization of 21481 in exponential form is:
21481 = 214811
Now multiplying the highest exponent prime factors to calculate the LCM of 21475 and 21481.
LCM(21475,21481) = 52×8591×214811
LCM(21475,21481) = 461304475
Factors of 21475
List of positive integer factors of 21475 that divides 21475 without a remainder.
1, 5, 25, 859, 4295, 21475
Factors of 21481
List of positive integer factors of 21481 that divides 21481 without a remainder.
1, 21481
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21475 and 21481, than apply into the LCM equation.
GCF(21475,21481) = 1
LCM(21475,21481) = ( 21475 × 21481) / 1
LCM(21475,21481) = 461304475 / 1
LCM(21475,21481) = 461304475
(i) The LCM of 21481 and 21475 is associative
LCM of 21475 and 21481 = LCM of 21481 and 21475
1. What is the LCM of 21475 and 21481?
Answer: LCM of 21475 and 21481 is 461304475.
2. What are the Factors of 21475?
Answer: Factors of 21475 are 1, 5, 25, 859, 4295, 21475. There are 6 integers that are factors of 21475. The greatest factor of 21475 is 21475.
3. What are the Factors of 21481?
Answer: Factors of 21481 are 1, 21481. There are 2 integers that are factors of 21481. The greatest factor of 21481 is 21481.
4. How to Find the LCM of 21475 and 21481?
Answer:
Least Common Multiple of 21475 and 21481 = 461304475
Step 1: Find the prime factorization of 21475
21475 = 5 x 5 x 859
Step 2: Find the prime factorization of 21481
21481 = 21481
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 461304475 = 5 x 5 x 859 x 21481
Step 4: Therefore, the least common multiple of 21475 and 21481 is 461304475.