Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 4240 and 4247 the smallest integer that is 18007280 that is divisible by both numbers.
Least Common Multiple (LCM) of 4240 and 4247 is 18007280.
LCM(4240,4247) = 18007280
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 4240 and 4247. First we will calculate the prime factors of 4240 and 4247.
Prime Factorization of 4240
2 | 4240 |
2 | 2120 |
2 | 1060 |
2 | 530 |
5 | 265 |
53 | 53 |
1 |
Prime factors of 4240 are 2, 5,53. Prime factorization of 4240 in exponential form is:
4240 = 24×51×531
Prime Factorization of 4247
31 | 4247 |
137 | 137 |
1 |
Prime factors of 4247 are 31,137. Prime factorization of 4247 in exponential form is:
4247 = 311×1371
Now multiplying the highest exponent prime factors to calculate the LCM of 4240 and 4247.
LCM(4240,4247) = 24×51×311×531×1371
LCM(4240,4247) = 18007280
Factors of 4240
List of positive integer factors of 4240 that divides 4240 without a remainder.
1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240
Factors of 4247
List of positive integer factors of 4247 that divides 4247 without a remainder.
1, 31, 137, 4247
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 4240 and 4247, than apply into the LCM equation.
GCF(4240,4247) = 1
LCM(4240,4247) = ( 4240 × 4247) / 1
LCM(4240,4247) = 18007280 / 1
LCM(4240,4247) = 18007280
(i) The LCM of 4247 and 4240 is associative
LCM of 4240 and 4247 = LCM of 4247 and 4240
1. What is the LCM of 4240 and 4247?
Answer: LCM of 4240 and 4247 is 18007280.
2. What are the Factors of 4240?
Answer: Factors of 4240 are 1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240. There are 20 integers that are factors of 4240. The greatest factor of 4240 is 4240.
3. What are the Factors of 4247?
Answer: Factors of 4247 are 1, 31, 137, 4247. There are 4 integers that are factors of 4247. The greatest factor of 4247 is 4247.
4. How to Find the LCM of 4240 and 4247?
Answer:
Least Common Multiple of 4240 and 4247 = 18007280
Step 1: Find the prime factorization of 4240
4240 = 2 x 2 x 2 x 2 x 5 x 53
Step 2: Find the prime factorization of 4247
4247 = 31 x 137
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 18007280 = 2 x 2 x 2 x 2 x 5 x 31 x 53 x 137
Step 4: Therefore, the least common multiple of 4240 and 4247 is 18007280.