Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1256 and 1262 the smallest integer that is 792536 that is divisible by both numbers.
Least Common Multiple (LCM) of 1256 and 1262 is 792536.
LCM(1256,1262) = 792536
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 1256 and 1262. First we will calculate the prime factors of 1256 and 1262.
Prime Factorization of 1256
2 | 1256 |
2 | 628 |
2 | 314 |
157 | 157 |
1 |
Prime factors of 1256 are 2,157. Prime factorization of 1256 in exponential form is:
1256 = 23×1571
Prime Factorization of 1262
2 | 1262 |
631 | 631 |
1 |
Prime factors of 1262 are 2,631. Prime factorization of 1262 in exponential form is:
1262 = 21×6311
Now multiplying the highest exponent prime factors to calculate the LCM of 1256 and 1262.
LCM(1256,1262) = 23×1571×6311
LCM(1256,1262) = 792536
Factors of 1256
List of positive integer factors of 1256 that divides 1256 without a remainder.
1, 2, 4, 8, 157, 314, 628, 1256
Factors of 1262
List of positive integer factors of 1262 that divides 1262 without a remainder.
1, 2, 631, 1262
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1256 and 1262, than apply into the LCM equation.
GCF(1256,1262) = 2
LCM(1256,1262) = ( 1256 × 1262) / 2
LCM(1256,1262) = 1585072 / 2
LCM(1256,1262) = 792536
(i) The LCM of 1262 and 1256 is associative
LCM of 1256 and 1262 = LCM of 1262 and 1256
1. What is the LCM of 1256 and 1262?
Answer: LCM of 1256 and 1262 is 792536.
2. What are the Factors of 1256?
Answer: Factors of 1256 are 1, 2, 4, 8, 157, 314, 628, 1256. There are 8 integers that are factors of 1256. The greatest factor of 1256 is 1256.
3. What are the Factors of 1262?
Answer: Factors of 1262 are 1, 2, 631, 1262. There are 4 integers that are factors of 1262. The greatest factor of 1262 is 1262.
4. How to Find the LCM of 1256 and 1262?
Answer:
Least Common Multiple of 1256 and 1262 = 792536
Step 1: Find the prime factorization of 1256
1256 = 2 x 2 x 2 x 157
Step 2: Find the prime factorization of 1262
1262 = 2 x 631
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 792536 = 2 x 2 x 2 x 157 x 631
Step 4: Therefore, the least common multiple of 1256 and 1262 is 792536.