Geometric cross-sums

Name: Geometric cross-sums
Brand: Workman Pub. Co.

Compiled automatically from public product data — the attributes on this page are assembled from the sources we hold, not written by a person or drafted by AI, and individual pages are not reviewed one by one. How we use AI →

Workman Pub. Co. Geometric cross-sums is listed under mathematical recreations identified by EAN 9780911104691.

9780911104691 Certainty 60%

Brand: Workman Pub. Co.
Category: mathematical recreations
Barcode type: EAN-13 / GTIN-13
GS1 registered country: Bookland (ISBN-13)
Data confidence: 60%

Product Details

Barcode (EAN/GTIN)	9780911104691
Product name	Geometric cross-sums
Brand / Manufacturer	Workman Pub. Co.
Category	mathematical recreations
GS1 Prefix	978 — registered in Bookland (ISBN-13)
Barcode type	EAN-13 / GTIN-13
Data certainty	60%

Verified Product Facts

The barcode 9780911104691 passes the GS1 mod-10 check-digit test, so it is a structurally valid GTIN. Its 978 prefix was issued by the GS1 member organisation for Bookland (ISBN-13) — registration, not place of manufacture.

Recorded specifications

ManufacturerTBS The Book Service Ltd

Package weight505 grams

UNSPSC code55101500

Attributes as recorded in the product catalogue data we hold. Figures describe the packaged article and may differ between production batches.

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🟢 No recall found for this barcode · We matched this barcode against recall records from EU Safety Gate, Health Canada, US FDA, Transport Canada and 18 other national safety agencies (2026-10-25). Not every recall notice lists a barcode, so this is not a safety guarantee — check the brand owner or the regulator for the definitive record. Browse recalls by agency, country or year →

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Barcode Lookup API

Access this product programmatically via the ProductGuru free API:

GET https://myproduct.guru/scan/9780911104691

GET https://myproduct.guru/lookup/9780911104691.json

No API key required. Returns JSON with product name, brand, manufacturer, and more.

About EAN Barcode 9780911104691

Barcode 9780911104691 is a EAN-13 (GTIN-13) identifying Geometric cross-sums in the GS1 global system.

Barcode format: EAN-13 / GTIN-13 — 13-digit globally unique product identifier
GS1 prefix 978: assigned to companies registered in Bookland (ISBN-13)
Manufacturer: Workman Pub. Co.
Scan compatibility: readable by any smartphone barcode scanner app

Frequently Asked Questions

What product has barcode 9780911104691?

Barcode 9780911104691 is Geometric cross-sums, sold under the brand Workman Pub. Co..

Who manufactures barcode 9780911104691?

Workman Pub. Co. is recorded as the manufacturer of Geometric cross-sums (barcode 9780911104691).

What country is barcode 9780911104691 from?

Based on the GS1 prefix 978, this product was registered in Bookland (ISBN-13).

Is barcode 9780911104691 a valid EAN?

Yes, 9780911104691 is a valid EAN-13 barcode with correct check digit.

⚠️ Data Disclaimer

Data is aggregated from open datasets and may be inaccurate or out of date; some outbound links are affiliate links from which we may earn a commission.

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