Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 253 and 255 the smallest integer that is 64515 that is divisible by both numbers.
Least Common Multiple (LCM) of 253 and 255 is 64515.
LCM(253,255) = 64515
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 253 and 255. First we will calculate the prime factors of 253 and 255.
Prime Factorization of 253
11 | 253 |
23 | 23 |
1 |
Prime factors of 253 are 11,23. Prime factorization of 253 in exponential form is:
253 = 111×231
Prime Factorization of 255
3 | 255 |
5 | 85 |
17 | 17 |
1 |
Prime factors of 255 are 3, 5,17. Prime factorization of 255 in exponential form is:
255 = 31×51×171
Now multiplying the highest exponent prime factors to calculate the LCM of 253 and 255.
LCM(253,255) = 31×51×111×171×231
LCM(253,255) = 64515
Factors of 253
List of positive integer factors of 253 that divides 253 without a remainder.
1, 11, 23, 253
Factors of 255
List of positive integer factors of 255 that divides 255 without a remainder.
1, 3, 5, 15, 17, 51, 85, 255
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 253 and 255, than apply into the LCM equation.
GCF(253,255) = 1
LCM(253,255) = ( 253 × 255) / 1
LCM(253,255) = 64515 / 1
LCM(253,255) = 64515
(i) The LCM of 255 and 253 is associative
LCM of 253 and 255 = LCM of 255 and 253
1. What is the LCM of 253 and 255?
Answer: LCM of 253 and 255 is 64515.
2. What are the Factors of 253?
Answer: Factors of 253 are 1, 11, 23, 253. There are 4 integers that are factors of 253. The greatest factor of 253 is 253.
3. What are the Factors of 255?
Answer: Factors of 255 are 1, 3, 5, 15, 17, 51, 85, 255. There are 8 integers that are factors of 255. The greatest factor of 255 is 255.
4. How to Find the LCM of 253 and 255?
Answer:
Least Common Multiple of 253 and 255 = 64515
Step 1: Find the prime factorization of 253
253 = 11 x 23
Step 2: Find the prime factorization of 255
255 = 3 x 5 x 17
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 64515 = 3 x 5 x 11 x 17 x 23
Step 4: Therefore, the least common multiple of 253 and 255 is 64515.