Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 172 and 179 the smallest integer that is 30788 that is divisible by both numbers.
Least Common Multiple (LCM) of 172 and 179 is 30788.
LCM(172,179) = 30788
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 172 and 179. First we will calculate the prime factors of 172 and 179.
Prime Factorization of 172
2 | 172 |
2 | 86 |
43 | 43 |
1 |
Prime factors of 172 are 2,43. Prime factorization of 172 in exponential form is:
172 = 22×431
Prime Factorization of 179
179 | 179 |
1 |
Prime factors of 179 are 179. Prime factorization of 179 in exponential form is:
179 = 1791
Now multiplying the highest exponent prime factors to calculate the LCM of 172 and 179.
LCM(172,179) = 22×431×1791
LCM(172,179) = 30788
Factors of 172
List of positive integer factors of 172 that divides 172 without a remainder.
1, 2, 4, 43, 86, 172
Factors of 179
List of positive integer factors of 179 that divides 179 without a remainder.
1, 179
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 172 and 179, than apply into the LCM equation.
GCF(172,179) = 1
LCM(172,179) = ( 172 × 179) / 1
LCM(172,179) = 30788 / 1
LCM(172,179) = 30788
(i) The LCM of 179 and 172 is associative
LCM of 172 and 179 = LCM of 179 and 172
1. What is the LCM of 172 and 179?
Answer: LCM of 172 and 179 is 30788.
2. What are the Factors of 172?
Answer: Factors of 172 are 1, 2, 4, 43, 86, 172. There are 6 integers that are factors of 172. The greatest factor of 172 is 172.
3. What are the Factors of 179?
Answer: Factors of 179 are 1, 179. There are 2 integers that are factors of 179. The greatest factor of 179 is 179.
4. How to Find the LCM of 172 and 179?
Answer:
Least Common Multiple of 172 and 179 = 30788
Step 1: Find the prime factorization of 172
172 = 2 x 2 x 43
Step 2: Find the prime factorization of 179
179 = 179
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 30788 = 2 x 2 x 43 x 179
Step 4: Therefore, the least common multiple of 172 and 179 is 30788.