Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 9639 and 9642 the smallest integer that is 30979746 that is divisible by both numbers.
Least Common Multiple (LCM) of 9639 and 9642 is 30979746.
LCM(9639,9642) = 30979746
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 9639 and 9642. First we will calculate the prime factors of 9639 and 9642.
Prime Factorization of 9639
3 | 9639 |
3 | 3213 |
3 | 1071 |
3 | 357 |
7 | 119 |
17 | 17 |
1 |
Prime factors of 9639 are 3, 7,17. Prime factorization of 9639 in exponential form is:
9639 = 34×71×171
Prime Factorization of 9642
2 | 9642 |
3 | 4821 |
1607 | 1607 |
1 |
Prime factors of 9642 are 2, 3,1607. Prime factorization of 9642 in exponential form is:
9642 = 21×31×16071
Now multiplying the highest exponent prime factors to calculate the LCM of 9639 and 9642.
LCM(9639,9642) = 21×34×71×171×16071
LCM(9639,9642) = 30979746
Factors of 9639
List of positive integer factors of 9639 that divides 9639 without a remainder.
1, 3, 7, 9, 17, 21, 27, 51, 63, 81, 119, 153, 189, 357, 459, 567, 1071, 1377, 3213, 9639
Factors of 9642
List of positive integer factors of 9642 that divides 9642 without a remainder.
1, 2, 3, 6, 1607, 3214, 4821, 9642
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 9639 and 9642, than apply into the LCM equation.
GCF(9639,9642) = 3
LCM(9639,9642) = ( 9639 × 9642) / 3
LCM(9639,9642) = 92939238 / 3
LCM(9639,9642) = 30979746
(i) The LCM of 9642 and 9639 is associative
LCM of 9639 and 9642 = LCM of 9642 and 9639
1. What is the LCM of 9639 and 9642?
Answer: LCM of 9639 and 9642 is 30979746.
2. What are the Factors of 9639?
Answer: Factors of 9639 are 1, 3, 7, 9, 17, 21, 27, 51, 63, 81, 119, 153, 189, 357, 459, 567, 1071, 1377, 3213, 9639. There are 20 integers that are factors of 9639. The greatest factor of 9639 is 9639.
3. What are the Factors of 9642?
Answer: Factors of 9642 are 1, 2, 3, 6, 1607, 3214, 4821, 9642. There are 8 integers that are factors of 9642. The greatest factor of 9642 is 9642.
4. How to Find the LCM of 9639 and 9642?
Answer:
Least Common Multiple of 9639 and 9642 = 30979746
Step 1: Find the prime factorization of 9639
9639 = 3 x 3 x 3 x 3 x 7 x 17
Step 2: Find the prime factorization of 9642
9642 = 2 x 3 x 1607
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 30979746 = 2 x 3 x 3 x 3 x 3 x 7 x 17 x 1607
Step 4: Therefore, the least common multiple of 9639 and 9642 is 30979746.