Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 30020 and 30028 the smallest integer that is 225360140 that is divisible by both numbers.
Least Common Multiple (LCM) of 30020 and 30028 is 225360140.
LCM(30020,30028) = 225360140
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 30020 and 30028. First we will calculate the prime factors of 30020 and 30028.
Prime Factorization of 30020
2 | 30020 |
2 | 15010 |
5 | 7505 |
19 | 1501 |
79 | 79 |
1 |
Prime factors of 30020 are 2, 5, 19,79. Prime factorization of 30020 in exponential form is:
30020 = 22×51×191×791
Prime Factorization of 30028
2 | 30028 |
2 | 15014 |
7507 | 7507 |
1 |
Prime factors of 30028 are 2,7507. Prime factorization of 30028 in exponential form is:
30028 = 22×75071
Now multiplying the highest exponent prime factors to calculate the LCM of 30020 and 30028.
LCM(30020,30028) = 22×51×191×791×75071
LCM(30020,30028) = 225360140
Factors of 30020
List of positive integer factors of 30020 that divides 30020 without a remainder.
1, 2, 4, 5, 10, 19, 20, 38, 76, 79, 95, 158, 190, 316, 380, 395, 790, 1501, 1580, 3002, 6004, 7505, 15010, 30020
Factors of 30028
List of positive integer factors of 30028 that divides 30028 without a remainder.
1, 2, 4, 7507, 15014, 30028
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 30020 and 30028, than apply into the LCM equation.
GCF(30020,30028) = 4
LCM(30020,30028) = ( 30020 × 30028) / 4
LCM(30020,30028) = 901440560 / 4
LCM(30020,30028) = 225360140
(i) The LCM of 30028 and 30020 is associative
LCM of 30020 and 30028 = LCM of 30028 and 30020
1. What is the LCM of 30020 and 30028?
Answer: LCM of 30020 and 30028 is 225360140.
2. What are the Factors of 30020?
Answer: Factors of 30020 are 1, 2, 4, 5, 10, 19, 20, 38, 76, 79, 95, 158, 190, 316, 380, 395, 790, 1501, 1580, 3002, 6004, 7505, 15010, 30020. There are 24 integers that are factors of 30020. The greatest factor of 30020 is 30020.
3. What are the Factors of 30028?
Answer: Factors of 30028 are 1, 2, 4, 7507, 15014, 30028. There are 6 integers that are factors of 30028. The greatest factor of 30028 is 30028.
4. How to Find the LCM of 30020 and 30028?
Answer:
Least Common Multiple of 30020 and 30028 = 225360140
Step 1: Find the prime factorization of 30020
30020 = 2 x 2 x 5 x 19 x 79
Step 2: Find the prime factorization of 30028
30028 = 2 x 2 x 7507
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 225360140 = 2 x 2 x 5 x 19 x 79 x 7507
Step 4: Therefore, the least common multiple of 30020 and 30028 is 225360140.