Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 90 and 94 the smallest integer that is 4230 that is divisible by both numbers.
Least Common Multiple (LCM) of 90 and 94 is 4230.
LCM(90,94) = 4230
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 90 and 94. First we will calculate the prime factors of 90 and 94.
Prime Factorization of 90
2 | 90 |
3 | 45 |
3 | 15 |
5 | 5 |
1 |
Prime factors of 90 are 2, 3,5. Prime factorization of 90 in exponential form is:
90 = 21×32×51
Prime Factorization of 94
2 | 94 |
47 | 47 |
1 |
Prime factors of 94 are 2,47. Prime factorization of 94 in exponential form is:
94 = 21×471
Now multiplying the highest exponent prime factors to calculate the LCM of 90 and 94.
LCM(90,94) = 21×32×51×471
LCM(90,94) = 4230
Factors of 90
List of positive integer factors of 90 that divides 90 without a remainder.
1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90
Factors of 94
List of positive integer factors of 94 that divides 94 without a remainder.
1, 2, 47, 94
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 90 and 94, than apply into the LCM equation.
GCF(90,94) = 2
LCM(90,94) = ( 90 × 94) / 2
LCM(90,94) = 8460 / 2
LCM(90,94) = 4230
(i) The LCM of 94 and 90 is associative
LCM of 90 and 94 = LCM of 94 and 90
1. What is the LCM of 90 and 94?
Answer: LCM of 90 and 94 is 4230.
2. What are the Factors of 90?
Answer: Factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90. There are 12 integers that are factors of 90. The greatest factor of 90 is 90.
3. What are the Factors of 94?
Answer: Factors of 94 are 1, 2, 47, 94. There are 4 integers that are factors of 94. The greatest factor of 94 is 94.
4. How to Find the LCM of 90 and 94?
Answer:
Least Common Multiple of 90 and 94 = 4230
Step 1: Find the prime factorization of 90
90 = 2 x 3 x 3 x 5
Step 2: Find the prime factorization of 94
94 = 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 = 4230 = 2 x 3 x 3 x 5 x 47
Step 4: Therefore, the least common multiple of 90 and 94 is 4230.