Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 202 and 210 the smallest integer that is 21210 that is divisible by both numbers.
Least Common Multiple (LCM) of 202 and 210 is 21210.
LCM(202,210) = 21210
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 202 and 210. First we will calculate the prime factors of 202 and 210.
Prime Factorization of 202
2 | 202 |
101 | 101 |
1 |
Prime factors of 202 are 2,101. Prime factorization of 202 in exponential form is:
202 = 21×1011
Prime Factorization of 210
2 | 210 |
3 | 105 |
5 | 35 |
7 | 7 |
1 |
Prime factors of 210 are 2, 3, 5,7. Prime factorization of 210 in exponential form is:
210 = 21×31×51×71
Now multiplying the highest exponent prime factors to calculate the LCM of 202 and 210.
LCM(202,210) = 21×31×51×71×1011
LCM(202,210) = 21210
Factors of 202
List of positive integer factors of 202 that divides 202 without a remainder.
1, 2, 101, 202
Factors of 210
List of positive integer factors of 210 that divides 210 without a remainder.
1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 202 and 210, than apply into the LCM equation.
GCF(202,210) = 2
LCM(202,210) = ( 202 × 210) / 2
LCM(202,210) = 42420 / 2
LCM(202,210) = 21210
(i) The LCM of 210 and 202 is associative
LCM of 202 and 210 = LCM of 210 and 202
1. What is the LCM of 202 and 210?
Answer: LCM of 202 and 210 is 21210.
2. What are the Factors of 202?
Answer: Factors of 202 are 1, 2, 101, 202. There are 4 integers that are factors of 202. The greatest factor of 202 is 202.
3. What are the Factors of 210?
Answer: Factors of 210 are 1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210. There are 16 integers that are factors of 210. The greatest factor of 210 is 210.
4. How to Find the LCM of 202 and 210?
Answer:
Least Common Multiple of 202 and 210 = 21210
Step 1: Find the prime factorization of 202
202 = 2 x 101
Step 2: Find the prime factorization of 210
210 = 2 x 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 = 21210 = 2 x 3 x 5 x 7 x 101
Step 4: Therefore, the least common multiple of 202 and 210 is 21210.