Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 89121 and 89128 the smallest integer that is 7943176488 that is divisible by both numbers.
Least Common Multiple (LCM) of 89121 and 89128 is 7943176488.
LCM(89121,89128) = 7943176488
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 89121 and 89128. First we will calculate the prime factors of 89121 and 89128.
Prime Factorization of 89121
3 | 89121 |
61 | 29707 |
487 | 487 |
1 |
Prime factors of 89121 are 3, 61,487. Prime factorization of 89121 in exponential form is:
89121 = 31×611×4871
Prime Factorization of 89128
2 | 89128 |
2 | 44564 |
2 | 22282 |
13 | 11141 |
857 | 857 |
1 |
Prime factors of 89128 are 2, 13,857. Prime factorization of 89128 in exponential form is:
89128 = 23×131×8571
Now multiplying the highest exponent prime factors to calculate the LCM of 89121 and 89128.
LCM(89121,89128) = 23×31×131×611×4871×8571
LCM(89121,89128) = 7943176488
Factors of 89121
List of positive integer factors of 89121 that divides 89121 without a remainder.
1, 3, 61, 183, 487, 1461, 29707, 89121
Factors of 89128
List of positive integer factors of 89128 that divides 89128 without a remainder.
1, 2, 4, 8, 13, 26, 52, 104, 857, 1714, 3428, 6856, 11141, 22282, 44564, 89128
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 89121 and 89128, than apply into the LCM equation.
GCF(89121,89128) = 1
LCM(89121,89128) = ( 89121 × 89128) / 1
LCM(89121,89128) = 7943176488 / 1
LCM(89121,89128) = 7943176488
(i) The LCM of 89128 and 89121 is associative
LCM of 89121 and 89128 = LCM of 89128 and 89121
1. What is the LCM of 89121 and 89128?
Answer: LCM of 89121 and 89128 is 7943176488.
2. What are the Factors of 89121?
Answer: Factors of 89121 are 1, 3, 61, 183, 487, 1461, 29707, 89121. There are 8 integers that are factors of 89121. The greatest factor of 89121 is 89121.
3. What are the Factors of 89128?
Answer: Factors of 89128 are 1, 2, 4, 8, 13, 26, 52, 104, 857, 1714, 3428, 6856, 11141, 22282, 44564, 89128. There are 16 integers that are factors of 89128. The greatest factor of 89128 is 89128.
4. How to Find the LCM of 89121 and 89128?
Answer:
Least Common Multiple of 89121 and 89128 = 7943176488
Step 1: Find the prime factorization of 89121
89121 = 3 x 61 x 487
Step 2: Find the prime factorization of 89128
89128 = 2 x 2 x 2 x 13 x 857
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 7943176488 = 2 x 2 x 2 x 3 x 13 x 61 x 487 x 857
Step 4: Therefore, the least common multiple of 89121 and 89128 is 7943176488.