Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 242 and 247 the smallest integer that is 59774 that is divisible by both numbers.
Least Common Multiple (LCM) of 242 and 247 is 59774.
LCM(242,247) = 59774
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 242 and 247. First we will calculate the prime factors of 242 and 247.
Prime Factorization of 242
2 | 242 |
11 | 121 |
11 | 11 |
1 |
Prime factors of 242 are 2,11. Prime factorization of 242 in exponential form is:
242 = 21×112
Prime Factorization of 247
13 | 247 |
19 | 19 |
1 |
Prime factors of 247 are 13,19. Prime factorization of 247 in exponential form is:
247 = 131×191
Now multiplying the highest exponent prime factors to calculate the LCM of 242 and 247.
LCM(242,247) = 21×112×131×191
LCM(242,247) = 59774
Factors of 242
List of positive integer factors of 242 that divides 242 without a remainder.
1, 2, 11, 22, 121, 242
Factors of 247
List of positive integer factors of 247 that divides 247 without a remainder.
1, 13, 19, 247
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 242 and 247, than apply into the LCM equation.
GCF(242,247) = 1
LCM(242,247) = ( 242 × 247) / 1
LCM(242,247) = 59774 / 1
LCM(242,247) = 59774
(i) The LCM of 247 and 242 is associative
LCM of 242 and 247 = LCM of 247 and 242
1. What is the LCM of 242 and 247?
Answer: LCM of 242 and 247 is 59774.
2. What are the Factors of 242?
Answer: Factors of 242 are 1, 2, 11, 22, 121, 242. There are 6 integers that are factors of 242. The greatest factor of 242 is 242.
3. What are the Factors of 247?
Answer: Factors of 247 are 1, 13, 19, 247. There are 4 integers that are factors of 247. The greatest factor of 247 is 247.
4. How to Find the LCM of 242 and 247?
Answer:
Least Common Multiple of 242 and 247 = 59774
Step 1: Find the prime factorization of 242
242 = 2 x 11 x 11
Step 2: Find the prime factorization of 247
247 = 13 x 19
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 59774 = 2 x 11 x 11 x 13 x 19
Step 4: Therefore, the least common multiple of 242 and 247 is 59774.