Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 748 and 752 the smallest integer that is 140624 that is divisible by both numbers.
Least Common Multiple (LCM) of 748 and 752 is 140624.
LCM(748,752) = 140624
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 748 and 752. First we will calculate the prime factors of 748 and 752.
Prime Factorization of 748
2 | 748 |
2 | 374 |
11 | 187 |
17 | 17 |
1 |
Prime factors of 748 are 2, 11,17. Prime factorization of 748 in exponential form is:
748 = 22×111×171
Prime Factorization of 752
2 | 752 |
2 | 376 |
2 | 188 |
2 | 94 |
47 | 47 |
1 |
Prime factors of 752 are 2,47. Prime factorization of 752 in exponential form is:
752 = 24×471
Now multiplying the highest exponent prime factors to calculate the LCM of 748 and 752.
LCM(748,752) = 24×111×171×471
LCM(748,752) = 140624
Factors of 748
List of positive integer factors of 748 that divides 748 without a remainder.
1, 2, 4, 11, 17, 22, 34, 44, 68, 187, 374, 748
Factors of 752
List of positive integer factors of 752 that divides 752 without a remainder.
1, 2, 4, 8, 16, 47, 94, 188, 376, 752
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 748 and 752, than apply into the LCM equation.
GCF(748,752) = 4
LCM(748,752) = ( 748 × 752) / 4
LCM(748,752) = 562496 / 4
LCM(748,752) = 140624
(i) The LCM of 752 and 748 is associative
LCM of 748 and 752 = LCM of 752 and 748
1. What is the LCM of 748 and 752?
Answer: LCM of 748 and 752 is 140624.
2. What are the Factors of 748?
Answer: Factors of 748 are 1, 2, 4, 11, 17, 22, 34, 44, 68, 187, 374, 748. There are 12 integers that are factors of 748. The greatest factor of 748 is 748.
3. What are the Factors of 752?
Answer: Factors of 752 are 1, 2, 4, 8, 16, 47, 94, 188, 376, 752. There are 10 integers that are factors of 752. The greatest factor of 752 is 752.
4. How to Find the LCM of 748 and 752?
Answer:
Least Common Multiple of 748 and 752 = 140624
Step 1: Find the prime factorization of 748
748 = 2 x 2 x 11 x 17
Step 2: Find the prime factorization of 752
752 = 2 x 2 x 2 x 2 x 47
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 140624 = 2 x 2 x 2 x 2 x 11 x 17 x 47
Step 4: Therefore, the least common multiple of 748 and 752 is 140624.