Least Common Multiple of 1661 and 1665

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

Free LCM Calculator determines the least common multiple (LCM) between 1661 and 1665 the smallest integer that is 2765565 that is divisible by both numbers.

Least Common Multiple (LCM) of 1661 and 1665 is 2765565.

LCM(1661,1665) = 2765565

LCM of 1661 and 1665

Least common multiple or lowest common denominator (LCD) can be calculated in three ways;

LCM of:
and

Least Common Multiple of 1661 and 1665

LCM of 1661 and 1665 is 2765565

Least common multiple can be found by multiplying the highest exponent prime factors of 1661 and 1665. First we will calculate the prime factors of 1661 and 1665.

Prime Factorization of 1661


11 1661
151 151
1

Prime factors of 1661 are 11,151. Prime factorization of 1661 in exponential form is:

1661 = 111×1511

Prime Factorization of 1665


3 1665
3 555
5 185
37 37
1

Prime factors of 1665 are 3, 5,37. Prime factorization of 1665 in exponential form is:

1665 = 32×51×371

Now multiplying the highest exponent prime factors to calculate the LCM of 1661 and 1665.

LCM(1661,1665) = 32×51×111×371×1511
LCM(1661,1665) = 2765565

Factors of 1661

List of positive integer factors of 1661 that divides 1661 without a remainder.

1, 11, 151, 1661

Factors of 1665

List of positive integer factors of 1665 that divides 1665 without a remainder.

1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665

Least Common Multiple of 1661 and 1665 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1661 and 1665, than apply into the LCM equation.

GCF(1661,1665) = 1
LCM(1661,1665) = ( 1661 × 1665) / 1
LCM(1661,1665) = 2765565 / 1
LCM(1661,1665) = 2765565

Properties of LCM 1661 and 1665

(i) The LCM of 1665 and 1661 is associative

LCM of 1661 and 1665 = LCM of 1665 and 1661

Related Least Common Multiples of 1661

Related Least Common Multiples of 1665

Frequently Asked Questions on LCM of 1661 and 1665

1. What is the LCM of 1661 and 1665?

Answer: LCM of 1661 and 1665 is 2765565.

2. What are the Factors of 1661?

Answer: Factors of 1661 are 1, 11, 151, 1661. There are 4 integers that are factors of 1661. The greatest factor of 1661 is 1661.

3. What are the Factors of 1665?

Answer: Factors of 1665 are 1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665. There are 12 integers that are factors of 1665. The greatest factor of 1665 is 1665.

4. How to Find the LCM of 1661 and 1665?

Answer:

Least Common Multiple of 1661 and 1665 = 2765565

Step 1: Find the prime factorization of 1661

1661 = 11 x 151

Step 2: Find the prime factorization of 1665

1665 = 3 x 3 x 5 x 37

Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:

LCM = 2765565 = 3 x 3 x 5 x 11 x 37 x 151

Step 4: Therefore, the least common multiple of 1661 and 1665 is 2765565.