Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 6520 and 6521 the smallest integer that is 42516920 that is divisible by both numbers.
Least Common Multiple (LCM) of 6520 and 6521 is 42516920.
LCM(6520,6521) = 42516920
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 6520 and 6521. First we will calculate the prime factors of 6520 and 6521.
Prime Factorization of 6520
2 | 6520 |
2 | 3260 |
2 | 1630 |
5 | 815 |
163 | 163 |
1 |
Prime factors of 6520 are 2, 5,163. Prime factorization of 6520 in exponential form is:
6520 = 23×51×1631
Prime Factorization of 6521
6521 | 6521 |
1 |
Prime factors of 6521 are 6521. Prime factorization of 6521 in exponential form is:
6521 = 65211
Now multiplying the highest exponent prime factors to calculate the LCM of 6520 and 6521.
LCM(6520,6521) = 23×51×1631×65211
LCM(6520,6521) = 42516920
Factors of 6520
List of positive integer factors of 6520 that divides 6520 without a remainder.
1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520
Factors of 6521
List of positive integer factors of 6521 that divides 6521 without a remainder.
1, 6521
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 6520 and 6521, than apply into the LCM equation.
GCF(6520,6521) = 1
LCM(6520,6521) = ( 6520 × 6521) / 1
LCM(6520,6521) = 42516920 / 1
LCM(6520,6521) = 42516920
(i) The LCM of 6521 and 6520 is associative
LCM of 6520 and 6521 = LCM of 6521 and 6520
1. What is the LCM of 6520 and 6521?
Answer: LCM of 6520 and 6521 is 42516920.
2. What are the Factors of 6520?
Answer: Factors of 6520 are 1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520. There are 16 integers that are factors of 6520. The greatest factor of 6520 is 6520.
3. What are the Factors of 6521?
Answer: Factors of 6521 are 1, 6521. There are 2 integers that are factors of 6521. The greatest factor of 6521 is 6521.
4. How to Find the LCM of 6520 and 6521?
Answer:
Least Common Multiple of 6520 and 6521 = 42516920
Step 1: Find the prime factorization of 6520
6520 = 2 x 2 x 2 x 5 x 163
Step 2: Find the prime factorization of 6521
6521 = 6521
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 42516920 = 2 x 2 x 2 x 5 x 163 x 6521
Step 4: Therefore, the least common multiple of 6520 and 6521 is 42516920.