Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1273 and 1278 the smallest integer that is 1626894 that is divisible by both numbers.
Least Common Multiple (LCM) of 1273 and 1278 is 1626894.
LCM(1273,1278) = 1626894
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 1273 and 1278. First we will calculate the prime factors of 1273 and 1278.
Prime Factorization of 1273
19 | 1273 |
67 | 67 |
1 |
Prime factors of 1273 are 19,67. Prime factorization of 1273 in exponential form is:
1273 = 191×671
Prime Factorization of 1278
2 | 1278 |
3 | 639 |
3 | 213 |
71 | 71 |
1 |
Prime factors of 1278 are 2, 3,71. Prime factorization of 1278 in exponential form is:
1278 = 21×32×711
Now multiplying the highest exponent prime factors to calculate the LCM of 1273 and 1278.
LCM(1273,1278) = 21×32×191×671×711
LCM(1273,1278) = 1626894
Factors of 1273
List of positive integer factors of 1273 that divides 1273 without a remainder.
1, 19, 67, 1273
Factors of 1278
List of positive integer factors of 1278 that divides 1278 without a remainder.
1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1273 and 1278, than apply into the LCM equation.
GCF(1273,1278) = 1
LCM(1273,1278) = ( 1273 × 1278) / 1
LCM(1273,1278) = 1626894 / 1
LCM(1273,1278) = 1626894
(i) The LCM of 1278 and 1273 is associative
LCM of 1273 and 1278 = LCM of 1278 and 1273
1. What is the LCM of 1273 and 1278?
Answer: LCM of 1273 and 1278 is 1626894.
2. What are the Factors of 1273?
Answer: Factors of 1273 are 1, 19, 67, 1273. There are 4 integers that are factors of 1273. The greatest factor of 1273 is 1273.
3. What are the Factors of 1278?
Answer: Factors of 1278 are 1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278. There are 12 integers that are factors of 1278. The greatest factor of 1278 is 1278.
4. How to Find the LCM of 1273 and 1278?
Answer:
Least Common Multiple of 1273 and 1278 = 1626894
Step 1: Find the prime factorization of 1273
1273 = 19 x 67
Step 2: Find the prime factorization of 1278
1278 = 2 x 3 x 3 x 71
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1626894 = 2 x 3 x 3 x 19 x 67 x 71
Step 4: Therefore, the least common multiple of 1273 and 1278 is 1626894.