Theory of numbers

Marsoni

M251S

$29.90

Get it in 3 business days with 1 day shipping. Friday, May 29

Theory of numbers"Theory of Numbers" by George Ballard Mathews is a foundational work in number theory. Written with clarity and precision, the book explores key topics such as divisibility, prime numbers, congruences, quadratic residues, and Diophantine equations. Mathews provides rigorous mathematical proofs while maintaining an accessible style, making it valuable for both students and researchers. Though intended as the first volume of a larger series, this book

Easy Shipping

Quick Dispatch:

Your Theory of numbers orders ship within 1-2 business days.

Delivery Options:

Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your Theory of numbers ships.

Need Help?
Questions about Theory of numbers, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for Theory of numbers in your area.

Get Shipping Estimates

Country Zip/Postal Code

Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
To process your return/exchange, please contact us at [email protected]
Please click here for more details>>> Return & Exchange Policy

It’s exactly as pictured. Bought it for my son. He loves it! Great quality leather. But, that Carhartt. Exceptional quality. Love the magnetic clip for cash. He’s a high school student. Now his ID, gifts cards , and cash are all centrally located. Instead of his pockets. Worth every penny! He wants me to order another one in case someone steals it. All his friends want one! Won’t let me give it 5 stars

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on February 15, 2026

Verified Purchase

Kody

West Palm Beach, US

★★★★★ 5

Carhartt bifold wallet

Style: Bi-fold

Solid wallet especially for the price. I have been very pleased by the quality and feel. Would recommend to anyone of need of a new wallet

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on April 22, 2026

Verified Purchase

Jessica Goodbar

Carnegie, US

★★★★★ 5

Genuinely the best out there

Style: Trifold

Wow! I am so impressed with the quality and size of this wallet. I searched hard for a genuine leather trifold and this one exceeded expectations. My boyfriend loves it and I can tell it is going to hold up. After he started wearing it in, the smell of the leather really came out. Im very happy with this choice!

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on January 15, 2026

Verified Purchase

KLM

Battle Creek, US

★★★★★ 5

Great wallet

Color: Brown (Bifold)

Great wallet, my son loved it!!

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on April 17, 2026

Verified Purchase