Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 756 and 760 the smallest integer that is 143640 that is divisible by both numbers.
Least Common Multiple (LCM) of 756 and 760 is 143640.
LCM(756,760) = 143640
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 756 and 760. First we will calculate the prime factors of 756 and 760.
Prime Factorization of 756
2 | 756 |
2 | 378 |
3 | 189 |
3 | 63 |
3 | 21 |
7 | 7 |
1 |
Prime factors of 756 are 2, 3,7. Prime factorization of 756 in exponential form is:
756 = 22×33×71
Prime Factorization of 760
2 | 760 |
2 | 380 |
2 | 190 |
5 | 95 |
19 | 19 |
1 |
Prime factors of 760 are 2, 5,19. Prime factorization of 760 in exponential form is:
760 = 23×51×191
Now multiplying the highest exponent prime factors to calculate the LCM of 756 and 760.
LCM(756,760) = 23×33×51×71×191
LCM(756,760) = 143640
Factors of 756
List of positive integer factors of 756 that divides 756 without a remainder.
1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756
Factors of 760
List of positive integer factors of 760 that divides 760 without a remainder.
1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 756 and 760, than apply into the LCM equation.
GCF(756,760) = 4
LCM(756,760) = ( 756 × 760) / 4
LCM(756,760) = 574560 / 4
LCM(756,760) = 143640
(i) The LCM of 760 and 756 is associative
LCM of 756 and 760 = LCM of 760 and 756
1. What is the LCM of 756 and 760?
Answer: LCM of 756 and 760 is 143640.
2. What are the Factors of 756?
Answer: Factors of 756 are 1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756. There are 24 integers that are factors of 756. The greatest factor of 756 is 756.
3. What are the Factors of 760?
Answer: Factors of 760 are 1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760. There are 16 integers that are factors of 760. The greatest factor of 760 is 760.
4. How to Find the LCM of 756 and 760?
Answer:
Least Common Multiple of 756 and 760 = 143640
Step 1: Find the prime factorization of 756
756 = 2 x 2 x 3 x 3 x 3 x 7
Step 2: Find the prime factorization of 760
760 = 2 x 2 x 2 x 5 x 19
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 143640 = 2 x 2 x 2 x 3 x 3 x 3 x 5 x 7 x 19
Step 4: Therefore, the least common multiple of 756 and 760 is 143640.