Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1253 and 1260 the smallest integer that is 225540 that is divisible by both numbers.
Least Common Multiple (LCM) of 1253 and 1260 is 225540.
LCM(1253,1260) = 225540
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 1253 and 1260. First we will calculate the prime factors of 1253 and 1260.
Prime Factorization of 1253
7 | 1253 |
179 | 179 |
1 |
Prime factors of 1253 are 7,179. Prime factorization of 1253 in exponential form is:
1253 = 71×1791
Prime Factorization of 1260
2 | 1260 |
2 | 630 |
3 | 315 |
3 | 105 |
5 | 35 |
7 | 7 |
1 |
Prime factors of 1260 are 2, 3, 5,7. Prime factorization of 1260 in exponential form is:
1260 = 22×32×51×71
Now multiplying the highest exponent prime factors to calculate the LCM of 1253 and 1260.
LCM(1253,1260) = 22×32×51×71×1791
LCM(1253,1260) = 225540
Factors of 1253
List of positive integer factors of 1253 that divides 1253 without a remainder.
1, 7, 179, 1253
Factors of 1260
List of positive integer factors of 1260 that divides 1260 without a remainder.
1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1253 and 1260, than apply into the LCM equation.
GCF(1253,1260) = 7
LCM(1253,1260) = ( 1253 × 1260) / 7
LCM(1253,1260) = 1578780 / 7
LCM(1253,1260) = 225540
(i) The LCM of 1260 and 1253 is associative
LCM of 1253 and 1260 = LCM of 1260 and 1253
1. What is the LCM of 1253 and 1260?
Answer: LCM of 1253 and 1260 is 225540.
2. What are the Factors of 1253?
Answer: Factors of 1253 are 1, 7, 179, 1253. There are 4 integers that are factors of 1253. The greatest factor of 1253 is 1253.
3. What are the Factors of 1260?
Answer: Factors of 1260 are 1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260. There are 36 integers that are factors of 1260. The greatest factor of 1260 is 1260.
4. How to Find the LCM of 1253 and 1260?
Answer:
Least Common Multiple of 1253 and 1260 = 225540
Step 1: Find the prime factorization of 1253
1253 = 7 x 179
Step 2: Find the prime factorization of 1260
1260 = 2 x 2 x 3 x 3 x 5 x 7
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 225540 = 2 x 2 x 3 x 3 x 5 x 7 x 179
Step 4: Therefore, the least common multiple of 1253 and 1260 is 225540.