Department of Energy Argonne National Laboratory Office of Science NEWTON's Homepage NEWTON's Homepage
NEWTON, Ask A Scientist!
NEWTON Home Page NEWTON Teachers Visit Our Archives Ask A Question How To Ask A Question Question of the Week Our Expert Scientists Volunteer at NEWTON! Frequently Asked Questions Referencing NEWTON About NEWTON About Ask A Scientist Education At Argonne 2 = 0?
Name: jason lawton
Status: N/A
Age: N/A
Location: N/A
Country: N/A
Date: Around 1995

Someone in my algebra 2 class thinks that 2 = 0. I was wondering if that would be true in any of the number systems.

Sure, a binary number system modulo 2.


I do not think jlu means "binary" in his answer. One writes "2 = 0 (mod 2)" where an equal sign with three lines is used instead of the regular equal sign that I have typed. Is modular arithmetic taught to algebra 2 students?

When I first saw this question, I thought it might be a reference to something similar to the "2 = 1" pseudoproof.


Click here to return to the Mathematics Archives

NEWTON is an electronic community for Science, Math, and Computer Science K-12 Educators, sponsored and operated by Argonne National Laboratory's Educational Programs, Andrew Skipor, Ph.D., Head of Educational Programs.

For assistance with NEWTON contact a System Operator (, or at Argonne's Educational Programs

Educational Programs
Building 360
9700 S. Cass Ave.
Argonne, Illinois
60439-4845, USA
Update: June 2012
Weclome To Newton

Argonne National Laboratory