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 261 the smallest integer that is 66033 that is divisible by both numbers.
Least Common Multiple (LCM) of 253 and 261 is 66033.
LCM(253,261) = 66033
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 261. First we will calculate the prime factors of 253 and 261.
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 261
3 | 261 |
3 | 87 |
29 | 29 |
1 |
Prime factors of 261 are 3,29. Prime factorization of 261 in exponential form is:
261 = 32×291
Now multiplying the highest exponent prime factors to calculate the LCM of 253 and 261.
LCM(253,261) = 32×111×231×291
LCM(253,261) = 66033
Factors of 253
List of positive integer factors of 253 that divides 253 without a remainder.
1, 11, 23, 253
Factors of 261
List of positive integer factors of 261 that divides 261 without a remainder.
1, 3, 9, 29, 87, 261
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 253 and 261, than apply into the LCM equation.
GCF(253,261) = 1
LCM(253,261) = ( 253 × 261) / 1
LCM(253,261) = 66033 / 1
LCM(253,261) = 66033
(i) The LCM of 261 and 253 is associative
LCM of 253 and 261 = LCM of 261 and 253
1. What is the LCM of 253 and 261?
Answer: LCM of 253 and 261 is 66033.
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 261?
Answer: Factors of 261 are 1, 3, 9, 29, 87, 261. There are 6 integers that are factors of 261. The greatest factor of 261 is 261.
4. How to Find the LCM of 253 and 261?
Answer:
Least Common Multiple of 253 and 261 = 66033
Step 1: Find the prime factorization of 253
253 = 11 x 23
Step 2: Find the prime factorization of 261
261 = 3 x 3 x 29
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 66033 = 3 x 3 x 11 x 23 x 29
Step 4: Therefore, the least common multiple of 253 and 261 is 66033.