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 21479 the smallest integer that is 461261525 that is divisible by both numbers.
Least Common Multiple (LCM) of 21475 and 21479 is 461261525.
LCM(21475,21479) = 461261525
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 21479. First we will calculate the prime factors of 21475 and 21479.
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 21479
47 | 21479 |
457 | 457 |
1 |
Prime factors of 21479 are 47,457. Prime factorization of 21479 in exponential form is:
21479 = 471×4571
Now multiplying the highest exponent prime factors to calculate the LCM of 21475 and 21479.
LCM(21475,21479) = 52×471×4571×8591
LCM(21475,21479) = 461261525
Factors of 21475
List of positive integer factors of 21475 that divides 21475 without a remainder.
1, 5, 25, 859, 4295, 21475
Factors of 21479
List of positive integer factors of 21479 that divides 21479 without a remainder.
1, 47, 457, 21479
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21475 and 21479, than apply into the LCM equation.
GCF(21475,21479) = 1
LCM(21475,21479) = ( 21475 × 21479) / 1
LCM(21475,21479) = 461261525 / 1
LCM(21475,21479) = 461261525
(i) The LCM of 21479 and 21475 is associative
LCM of 21475 and 21479 = LCM of 21479 and 21475
1. What is the LCM of 21475 and 21479?
Answer: LCM of 21475 and 21479 is 461261525.
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 21479?
Answer: Factors of 21479 are 1, 47, 457, 21479. There are 4 integers that are factors of 21479. The greatest factor of 21479 is 21479.
4. How to Find the LCM of 21475 and 21479?
Answer:
Least Common Multiple of 21475 and 21479 = 461261525
Step 1: Find the prime factorization of 21475
21475 = 5 x 5 x 859
Step 2: Find the prime factorization of 21479
21479 = 47 x 457
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 461261525 = 5 x 5 x 47 x 457 x 859
Step 4: Therefore, the least common multiple of 21475 and 21479 is 461261525.