LCM for 25 and 80

What's the Least Common Multiple (LCM) of 25 and 80?

Answer: LCM of 25 and 80 is 400

(Four hundred)

Finding LCM for 25 and 80 using GCF's of these numbers

The first method to find LCM for numbers 25 and 80 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:

LCM = (Number1 × Number2) ÷ GCF

GCF of numbers 25 and 80 is 5, so

LCM = (25 × 80) ÷ 5

LCM = 2000 ÷ 5

LCM = 400

Finding LCM for 25 and 80 by Listing Multiples

The second method to find LCM for numbers 25 and 80 is to list out the common multiples for both nubmers and pick the first which matching:

Multiples of 25: 25, 50, 75, 100, 125, 150, 175, 200, 225, 250, 275, 300, 325, 350, 375, 400, 425, 450

Multiples of 80: 80, 160, 240, 320, 400, 480, 560

So the LCM for 25 and 80 is 400

Finding LCM for 25 and 80 by Prime Factorization

Another method to find LCM for numbers 25 and 80 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors:

All Prime Factors of 25: 5, 5 (exponent form: 52)

All Prime Factors of 80: 2, 2, 2, 2, 5 (exponent form: 24, 51)

52 × 24 = 400

See Also

About "Least Common Multiple" Calculator

This calculator will help you find the Least Common Multiple (LCM) of two numbers. For example, it can help you find out what's the Least Common Multiple (LCM) of 25 and 80? (The answer is: 400). Select the first number (e.g. '25') and the second number (e.g. '80'). After that hit the 'Calculate' button.
Least Common Multiple (LCM) also known as the Lowest Common Multiple or Smallest Common Multiple of 2 numbers - it is the smallest positive integer that is divisible by both numbers

LCM Table

Number 1Number 2LCM
1080
1180880
1280
13801040
1480560
1580240
1680
17801360
1880
19801520
2080
21801680
2280880
23801840
2480
2580
26801040
27802160
2880560
29802320
3080240
31802480
3280160
33802640
34801360
3580560
3680720
37802960
38801520
39803120

FAQ

What's the Least Common Multiple (LCM) of 25 and 80?

LCM of 25 and 80 is 400