Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 912 and 920 the smallest integer that is 104880 that is divisible by both numbers.
Least Common Multiple (LCM) of 912 and 920 is 104880.
LCM(912,920) = 104880
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 912 and 920. First we will calculate the prime factors of 912 and 920.
Prime Factorization of 912
2 | 912 |
2 | 456 |
2 | 228 |
2 | 114 |
3 | 57 |
19 | 19 |
1 |
Prime factors of 912 are 2, 3,19. Prime factorization of 912 in exponential form is:
912 = 24×31×191
Prime Factorization of 920
2 | 920 |
2 | 460 |
2 | 230 |
5 | 115 |
23 | 23 |
1 |
Prime factors of 920 are 2, 5,23. Prime factorization of 920 in exponential form is:
920 = 23×51×231
Now multiplying the highest exponent prime factors to calculate the LCM of 912 and 920.
LCM(912,920) = 24×31×51×191×231
LCM(912,920) = 104880
Factors of 912
List of positive integer factors of 912 that divides 912 without a remainder.
1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 38, 48, 57, 76, 114, 152, 228, 304, 456, 912
Factors of 920
List of positive integer factors of 920 that divides 920 without a remainder.
1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 912 and 920, than apply into the LCM equation.
GCF(912,920) = 8
LCM(912,920) = ( 912 × 920) / 8
LCM(912,920) = 839040 / 8
LCM(912,920) = 104880
(i) The LCM of 920 and 912 is associative
LCM of 912 and 920 = LCM of 920 and 912
1. What is the LCM of 912 and 920?
Answer: LCM of 912 and 920 is 104880.
2. What are the Factors of 912?
Answer: Factors of 912 are 1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 38, 48, 57, 76, 114, 152, 228, 304, 456, 912. There are 20 integers that are factors of 912. The greatest factor of 912 is 912.
3. What are the Factors of 920?
Answer: Factors of 920 are 1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920. There are 16 integers that are factors of 920. The greatest factor of 920 is 920.
4. How to Find the LCM of 912 and 920?
Answer:
Least Common Multiple of 912 and 920 = 104880
Step 1: Find the prime factorization of 912
912 = 2 x 2 x 2 x 2 x 3 x 19
Step 2: Find the prime factorization of 920
920 = 2 x 2 x 2 x 5 x 23
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 104880 = 2 x 2 x 2 x 2 x 3 x 5 x 19 x 23
Step 4: Therefore, the least common multiple of 912 and 920 is 104880.