Brilliant

Today Courses

Algebra
Geometry
Number Theory
Calculus
Probability
Basic Mathematics
Logic
Classical Mechanics
Electricity and Magnetism
Computer Science
Quantitative Finance
Chemistry

Excel in math and science.

Log in with Facebook Log in with Google Log in with email

Join using Facebook Join using Google Join using email

Forgot password? New user? Sign up

Existing user? Log in

Every Number Serves A Purpose

Number Theory Level 1

15 is not divisible by 6.
But for an integer $A$ , the product $15\times A$ is divisible by 6.

Is it true that $A$ must be divisible by 6?

Yes, it is true No, it is not true

View solutions

Your answer seems reasonable. Find out if you're right!

Sign up to access problem solutions.

That seems reasonable. Find out if you're right!

Sign up to save your progress!

Log in with Facebook Log in with Google Log in with email

Join using Facebook Join using Google Join using email

Forgot password? New user? Sign up

Existing user? Log in

by Ronald Chén

×

Problem Loading...

Note Loading...

Set Loading...