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LCM of 15 and 20 Calculator

LCM Calculator computes the LCM of two numbers i.e. 15 and 20 and gives the Least Common Multiple 60 the smallest integer that is divisible by both the numbers.

Least Common Multiple of 15 and 20 is 60

LCM(15, 20) = 60

Ex: number 1 - 1500 and number 2 - 20.

LCM of
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Finding LCM of two numbers 15 and 20 using Prime Factorization Method

Check out the procedure to find the Least Common Multiple of 15 and 20 using the Prime Factorization Method. They are as follows

Step 1: Firstly, find the Prime Factorization of given numbers 15, 20

Prime Factorization of 15 is as such


3 15
5 5
1

Prime factors of 15 are 3,5. Prime factorization of 15 in exponent form is:

15 = 31×51

Prime Factorization of 20 is as follows


2 20
2 10
5 5
1

Prime factors of 20 are 2,5. Prime factorization of 20 in exponent form is:

20 = 22×51

Step 2: Multiply together each of the Prime Numbers with the highest power to obtain the Least Common Multiple

On doing so, you will get the resultant equation as 22×31×51= 60

Therefore, LCM of two numbers 15 and 20 is 60

LCM(15,20) = 60

Finding LCM of two numbers 15 and 20 using GCF Formula

Go through the simple and easy steps listed to know the Least Common Multiple of 15, 20 using the GCF Formula

Step 1: Find the Greatest Common Factor of 15, 20 initially.

Greatest Common Factor is the largest integer by which both the numbers can be divided. The GCF of 15, 20 is 5.

Simply use the GCF obtained in the formula to find the Least Common Multiple i.e. LCM(a,b) =a*b/GCF(a,b)

Substitute the inputs in the formula and you will get as under

LCM(15,20)= 15*20/GCF(15, 20)

= 15*20/5

= 60

Thus, LCM(15,20) using the GCF Formula is 60

FAQs on LCM of two numbers 15, 20

1. What is the LCM of two numbers 15, 20?

LCM of two numbers 15, 20 is 60

2. How to find LCM of two numbers 15, 20 easily?

To find the LCM of two numbers 15, 20 take the help of LCM Calculator and get the result in a fraction of second.

3. Where do I get a detailed Procedure explaining the LCM of numbers 15, 20?

You can find a detailed Procedure explaining the LCM of numbers 15, 20 on our page.