Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 872 and 880 the smallest integer that is 95920 that is divisible by both numbers.
Least Common Multiple (LCM) of 872 and 880 is 95920.
LCM(872,880) = 95920
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 872 and 880. First we will calculate the prime factors of 872 and 880.
Prime Factorization of 872
2 | 872 |
2 | 436 |
2 | 218 |
109 | 109 |
1 |
Prime factors of 872 are 2,109. Prime factorization of 872 in exponential form is:
872 = 23×1091
Prime Factorization of 880
2 | 880 |
2 | 440 |
2 | 220 |
2 | 110 |
5 | 55 |
11 | 11 |
1 |
Prime factors of 880 are 2, 5,11. Prime factorization of 880 in exponential form is:
880 = 24×51×111
Now multiplying the highest exponent prime factors to calculate the LCM of 872 and 880.
LCM(872,880) = 24×51×111×1091
LCM(872,880) = 95920
Factors of 872
List of positive integer factors of 872 that divides 872 without a remainder.
1, 2, 4, 8, 109, 218, 436, 872
Factors of 880
List of positive integer factors of 880 that divides 880 without a remainder.
1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 872 and 880, than apply into the LCM equation.
GCF(872,880) = 8
LCM(872,880) = ( 872 × 880) / 8
LCM(872,880) = 767360 / 8
LCM(872,880) = 95920
(i) The LCM of 880 and 872 is associative
LCM of 872 and 880 = LCM of 880 and 872
1. What is the LCM of 872 and 880?
Answer: LCM of 872 and 880 is 95920.
2. What are the Factors of 872?
Answer: Factors of 872 are 1, 2, 4, 8, 109, 218, 436, 872. There are 8 integers that are factors of 872. The greatest factor of 872 is 872.
3. What are the Factors of 880?
Answer: Factors of 880 are 1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880. There are 20 integers that are factors of 880. The greatest factor of 880 is 880.
4. How to Find the LCM of 872 and 880?
Answer:
Least Common Multiple of 872 and 880 = 95920
Step 1: Find the prime factorization of 872
872 = 2 x 2 x 2 x 109
Step 2: Find the prime factorization of 880
880 = 2 x 2 x 2 x 2 x 5 x 11
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 95920 = 2 x 2 x 2 x 2 x 5 x 11 x 109
Step 4: Therefore, the least common multiple of 872 and 880 is 95920.