Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 20425 and 20433 the smallest integer that is 417344025 that is divisible by both numbers.
Least Common Multiple (LCM) of 20425 and 20433 is 417344025.
LCM(20425,20433) = 417344025
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 20425 and 20433. First we will calculate the prime factors of 20425 and 20433.
Prime Factorization of 20425
5 | 20425 |
5 | 4085 |
19 | 817 |
43 | 43 |
1 |
Prime factors of 20425 are 5, 19,43. Prime factorization of 20425 in exponential form is:
20425 = 52×191×431
Prime Factorization of 20433
3 | 20433 |
7 | 6811 |
7 | 973 |
139 | 139 |
1 |
Prime factors of 20433 are 3, 7,139. Prime factorization of 20433 in exponential form is:
20433 = 31×72×1391
Now multiplying the highest exponent prime factors to calculate the LCM of 20425 and 20433.
LCM(20425,20433) = 31×52×72×191×431×1391
LCM(20425,20433) = 417344025
Factors of 20425
List of positive integer factors of 20425 that divides 20425 without a remainder.
1, 5, 19, 25, 43, 95, 215, 475, 817, 1075, 4085, 20425
Factors of 20433
List of positive integer factors of 20433 that divides 20433 without a remainder.
1, 3, 7, 21, 49, 139, 147, 417, 973, 2919, 6811, 20433
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20425 and 20433, than apply into the LCM equation.
GCF(20425,20433) = 1
LCM(20425,20433) = ( 20425 × 20433) / 1
LCM(20425,20433) = 417344025 / 1
LCM(20425,20433) = 417344025
(i) The LCM of 20433 and 20425 is associative
LCM of 20425 and 20433 = LCM of 20433 and 20425
1. What is the LCM of 20425 and 20433?
Answer: LCM of 20425 and 20433 is 417344025.
2. What are the Factors of 20425?
Answer: Factors of 20425 are 1, 5, 19, 25, 43, 95, 215, 475, 817, 1075, 4085, 20425. There are 12 integers that are factors of 20425. The greatest factor of 20425 is 20425.
3. What are the Factors of 20433?
Answer: Factors of 20433 are 1, 3, 7, 21, 49, 139, 147, 417, 973, 2919, 6811, 20433. There are 12 integers that are factors of 20433. The greatest factor of 20433 is 20433.
4. How to Find the LCM of 20425 and 20433?
Answer:
Least Common Multiple of 20425 and 20433 = 417344025
Step 1: Find the prime factorization of 20425
20425 = 5 x 5 x 19 x 43
Step 2: Find the prime factorization of 20433
20433 = 3 x 7 x 7 x 139
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 417344025 = 3 x 5 x 5 x 7 x 7 x 19 x 43 x 139
Step 4: Therefore, the least common multiple of 20425 and 20433 is 417344025.