Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 97 and 105 the smallest integer that is 10185 that is divisible by both numbers.
Least Common Multiple (LCM) of 97 and 105 is 10185.
LCM(97,105) = 10185
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 97 and 105. First we will calculate the prime factors of 97 and 105.
Prime Factorization of 97
97 | 97 |
1 |
Prime factors of 97 are 97. Prime factorization of 97 in exponential form is:
97 = 971
Prime Factorization of 105
3 | 105 |
5 | 35 |
7 | 7 |
1 |
Prime factors of 105 are 3, 5,7. Prime factorization of 105 in exponential form is:
105 = 31×51×71
Now multiplying the highest exponent prime factors to calculate the LCM of 97 and 105.
LCM(97,105) = 31×51×71×971
LCM(97,105) = 10185
Factors of 97
List of positive integer factors of 97 that divides 97 without a remainder.
1, 97
Factors of 105
List of positive integer factors of 105 that divides 105 without a remainder.
1, 3, 5, 7, 15, 21, 35, 105
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 97 and 105, than apply into the LCM equation.
GCF(97,105) = 1
LCM(97,105) = ( 97 × 105) / 1
LCM(97,105) = 10185 / 1
LCM(97,105) = 10185
(i) The LCM of 105 and 97 is associative
LCM of 97 and 105 = LCM of 105 and 97
1. What is the LCM of 97 and 105?
Answer: LCM of 97 and 105 is 10185.
2. What are the Factors of 97?
Answer: Factors of 97 are 1, 97. There are 2 integers that are factors of 97. The greatest factor of 97 is 97.
3. What are the Factors of 105?
Answer: Factors of 105 are 1, 3, 5, 7, 15, 21, 35, 105. There are 8 integers that are factors of 105. The greatest factor of 105 is 105.
4. How to Find the LCM of 97 and 105?
Answer:
Least Common Multiple of 97 and 105 = 10185
Step 1: Find the prime factorization of 97
97 = 97
Step 2: Find the prime factorization of 105
105 = 3 x 5 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 = 10185 = 3 x 5 x 7 x 97
Step 4: Therefore, the least common multiple of 97 and 105 is 10185.