Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 702 and 705 the smallest integer that is 164970 that is divisible by both numbers.
Least Common Multiple (LCM) of 702 and 705 is 164970.
LCM(702,705) = 164970
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 702 and 705. First we will calculate the prime factors of 702 and 705.
Prime Factorization of 702
2 | 702 |
3 | 351 |
3 | 117 |
3 | 39 |
13 | 13 |
1 |
Prime factors of 702 are 2, 3,13. Prime factorization of 702 in exponential form is:
702 = 21×33×131
Prime Factorization of 705
3 | 705 |
5 | 235 |
47 | 47 |
1 |
Prime factors of 705 are 3, 5,47. Prime factorization of 705 in exponential form is:
705 = 31×51×471
Now multiplying the highest exponent prime factors to calculate the LCM of 702 and 705.
LCM(702,705) = 21×33×51×131×471
LCM(702,705) = 164970
Factors of 702
List of positive integer factors of 702 that divides 702 without a remainder.
1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 117, 234, 351, 702
Factors of 705
List of positive integer factors of 705 that divides 705 without a remainder.
1, 3, 5, 15, 47, 141, 235, 705
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 702 and 705, than apply into the LCM equation.
GCF(702,705) = 3
LCM(702,705) = ( 702 × 705) / 3
LCM(702,705) = 494910 / 3
LCM(702,705) = 164970
(i) The LCM of 705 and 702 is associative
LCM of 702 and 705 = LCM of 705 and 702
1. What is the LCM of 702 and 705?
Answer: LCM of 702 and 705 is 164970.
2. What are the Factors of 702?
Answer: Factors of 702 are 1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 117, 234, 351, 702. There are 16 integers that are factors of 702. The greatest factor of 702 is 702.
3. What are the Factors of 705?
Answer: Factors of 705 are 1, 3, 5, 15, 47, 141, 235, 705. There are 8 integers that are factors of 705. The greatest factor of 705 is 705.
4. How to Find the LCM of 702 and 705?
Answer:
Least Common Multiple of 702 and 705 = 164970
Step 1: Find the prime factorization of 702
702 = 2 x 3 x 3 x 3 x 13
Step 2: Find the prime factorization of 705
705 = 3 x 5 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 = 164970 = 2 x 3 x 3 x 3 x 5 x 13 x 47
Step 4: Therefore, the least common multiple of 702 and 705 is 164970.