Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 8221 and 8225 the smallest integer that is 67617725 that is divisible by both numbers.
Least Common Multiple (LCM) of 8221 and 8225 is 67617725.
LCM(8221,8225) = 67617725
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 8221 and 8225. First we will calculate the prime factors of 8221 and 8225.
Prime Factorization of 8221
8221 | 8221 |
1 |
Prime factors of 8221 are 8221. Prime factorization of 8221 in exponential form is:
8221 = 82211
Prime Factorization of 8225
5 | 8225 |
5 | 1645 |
7 | 329 |
47 | 47 |
1 |
Prime factors of 8225 are 5, 7,47. Prime factorization of 8225 in exponential form is:
8225 = 52×71×471
Now multiplying the highest exponent prime factors to calculate the LCM of 8221 and 8225.
LCM(8221,8225) = 52×71×471×82211
LCM(8221,8225) = 67617725
Factors of 8221
List of positive integer factors of 8221 that divides 8221 without a remainder.
1, 8221
Factors of 8225
List of positive integer factors of 8225 that divides 8225 without a remainder.
1, 5, 7, 25, 35, 47, 175, 235, 329, 1175, 1645, 8225
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8221 and 8225, than apply into the LCM equation.
GCF(8221,8225) = 1
LCM(8221,8225) = ( 8221 × 8225) / 1
LCM(8221,8225) = 67617725 / 1
LCM(8221,8225) = 67617725
(i) The LCM of 8225 and 8221 is associative
LCM of 8221 and 8225 = LCM of 8225 and 8221
1. What is the LCM of 8221 and 8225?
Answer: LCM of 8221 and 8225 is 67617725.
2. What are the Factors of 8221?
Answer: Factors of 8221 are 1, 8221. There are 2 integers that are factors of 8221. The greatest factor of 8221 is 8221.
3. What are the Factors of 8225?
Answer: Factors of 8225 are 1, 5, 7, 25, 35, 47, 175, 235, 329, 1175, 1645, 8225. There are 12 integers that are factors of 8225. The greatest factor of 8225 is 8225.
4. How to Find the LCM of 8221 and 8225?
Answer:
Least Common Multiple of 8221 and 8225 = 67617725
Step 1: Find the prime factorization of 8221
8221 = 8221
Step 2: Find the prime factorization of 8225
8225 = 5 x 5 x 7 x 47
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 67617725 = 5 x 5 x 7 x 47 x 8221
Step 4: Therefore, the least common multiple of 8221 and 8225 is 67617725.