Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 88 and 84 the smallest integer that is 1848 that is divisible by both numbers.
Least Common Multiple (LCM) of 88 and 84 is 1848.
LCM(88,84) = 1848
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 88 and 84. First we will calculate the prime factors of 88 and 84.
Prime Factorization of 88
2 | 88 |
2 | 44 |
2 | 22 |
11 | 11 |
1 |
Prime factors of 88 are 2,11. Prime factorization of 88 in exponential form is:
88 = 23×111
Prime Factorization of 84
2 | 84 |
2 | 42 |
3 | 21 |
7 | 7 |
1 |
Prime factors of 84 are 2, 3,7. Prime factorization of 84 in exponential form is:
84 = 22×31×71
Now multiplying the highest exponent prime factors to calculate the LCM of 88 and 84.
LCM(88,84) = 23×31×71×111
LCM(88,84) = 1848
Factors of 88
List of positive integer factors of 88 that divides 88 without a remainder.
1, 2, 4, 8, 11, 22, 44, 88
Factors of 84
List of positive integer factors of 84 that divides 84 without a remainder.
1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 88 and 84, than apply into the LCM equation.
GCF(88,84) = 4
LCM(88,84) = ( 88 × 84) / 4
LCM(88,84) = 7392 / 4
LCM(88,84) = 1848
(i) The LCM of 84 and 88 is associative
LCM of 88 and 84 = LCM of 84 and 88
1. What is the LCM of 88 and 84?
Answer: LCM of 88 and 84 is 1848.
2. What are the Factors of 88?
Answer: Factors of 88 are 1, 2, 4, 8, 11, 22, 44, 88. There are 8 integers that are factors of 88. The greatest factor of 88 is 88.
3. What are the Factors of 84?
Answer: Factors of 84 are 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84. There are 12 integers that are factors of 84. The greatest factor of 84 is 84.
4. How to Find the LCM of 88 and 84?
Answer:
Least Common Multiple of 88 and 84 = 1848
Step 1: Find the prime factorization of 88
88 = 2 x 2 x 2 x 11
Step 2: Find the prime factorization of 84
84 = 2 x 2 x 3 x 7
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 1848 = 2 x 2 x 2 x 3 x 7 x 11
Step 4: Therefore, the least common multiple of 88 and 84 is 1848.