Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 478 and 485 the smallest integer that is 231830 that is divisible by both numbers.
Least Common Multiple (LCM) of 478 and 485 is 231830.
LCM(478,485) = 231830
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 478 and 485. First we will calculate the prime factors of 478 and 485.
Prime Factorization of 478
2 | 478 |
239 | 239 |
1 |
Prime factors of 478 are 2,239. Prime factorization of 478 in exponential form is:
478 = 21×2391
Prime Factorization of 485
5 | 485 |
97 | 97 |
1 |
Prime factors of 485 are 5,97. Prime factorization of 485 in exponential form is:
485 = 51×971
Now multiplying the highest exponent prime factors to calculate the LCM of 478 and 485.
LCM(478,485) = 21×51×971×2391
LCM(478,485) = 231830
Factors of 478
List of positive integer factors of 478 that divides 478 without a remainder.
1, 2, 239, 478
Factors of 485
List of positive integer factors of 485 that divides 485 without a remainder.
1, 5, 97, 485
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 478 and 485, than apply into the LCM equation.
GCF(478,485) = 1
LCM(478,485) = ( 478 × 485) / 1
LCM(478,485) = 231830 / 1
LCM(478,485) = 231830
(i) The LCM of 485 and 478 is associative
LCM of 478 and 485 = LCM of 485 and 478
1. What is the LCM of 478 and 485?
Answer: LCM of 478 and 485 is 231830.
2. What are the Factors of 478?
Answer: Factors of 478 are 1, 2, 239, 478. There are 4 integers that are factors of 478. The greatest factor of 478 is 478.
3. What are the Factors of 485?
Answer: Factors of 485 are 1, 5, 97, 485. There are 4 integers that are factors of 485. The greatest factor of 485 is 485.
4. How to Find the LCM of 478 and 485?
Answer:
Least Common Multiple of 478 and 485 = 231830
Step 1: Find the prime factorization of 478
478 = 2 x 239
Step 2: Find the prime factorization of 485
485 = 5 x 97
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 231830 = 2 x 5 x 97 x 239
Step 4: Therefore, the least common multiple of 478 and 485 is 231830.