Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 8242 and 8247 the smallest integer that is 67971774 that is divisible by both numbers.
Least Common Multiple (LCM) of 8242 and 8247 is 67971774.
LCM(8242,8247) = 67971774
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 8242 and 8247. First we will calculate the prime factors of 8242 and 8247.
Prime Factorization of 8242
2 | 8242 |
13 | 4121 |
317 | 317 |
1 |
Prime factors of 8242 are 2, 13,317. Prime factorization of 8242 in exponential form is:
8242 = 21×131×3171
Prime Factorization of 8247
3 | 8247 |
2749 | 2749 |
1 |
Prime factors of 8247 are 3,2749. Prime factorization of 8247 in exponential form is:
8247 = 31×27491
Now multiplying the highest exponent prime factors to calculate the LCM of 8242 and 8247.
LCM(8242,8247) = 21×31×131×3171×27491
LCM(8242,8247) = 67971774
Factors of 8242
List of positive integer factors of 8242 that divides 8242 without a remainder.
1, 2, 13, 26, 317, 634, 4121, 8242
Factors of 8247
List of positive integer factors of 8247 that divides 8247 without a remainder.
1, 3, 2749, 8247
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8242 and 8247, than apply into the LCM equation.
GCF(8242,8247) = 1
LCM(8242,8247) = ( 8242 × 8247) / 1
LCM(8242,8247) = 67971774 / 1
LCM(8242,8247) = 67971774
(i) The LCM of 8247 and 8242 is associative
LCM of 8242 and 8247 = LCM of 8247 and 8242
1. What is the LCM of 8242 and 8247?
Answer: LCM of 8242 and 8247 is 67971774.
2. What are the Factors of 8242?
Answer: Factors of 8242 are 1, 2, 13, 26, 317, 634, 4121, 8242. There are 8 integers that are factors of 8242. The greatest factor of 8242 is 8242.
3. What are the Factors of 8247?
Answer: Factors of 8247 are 1, 3, 2749, 8247. There are 4 integers that are factors of 8247. The greatest factor of 8247 is 8247.
4. How to Find the LCM of 8242 and 8247?
Answer:
Least Common Multiple of 8242 and 8247 = 67971774
Step 1: Find the prime factorization of 8242
8242 = 2 x 13 x 317
Step 2: Find the prime factorization of 8247
8247 = 3 x 2749
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 67971774 = 2 x 3 x 13 x 317 x 2749
Step 4: Therefore, the least common multiple of 8242 and 8247 is 67971774.