✏️ GCF and LCM: Practice A (6.NS.B.4)

Paginepagineapp.com

Name:

Date:

Find the greatest common factor and least common multiple of two whole numbers. Solve each problem.

1. GCF of 5 and 42 = ___

2. LCM of 16 and 49 = ___

3. GCF of 58 and 16 = ___

4. LCM of 38 and 4 = ___

5. GCF of 19 and 55 = ___

6. LCM of 45 and 25 = ___

7. GCF of 35 and 21 = ___

8. LCM of 37 and 41 = ___

9. GCF of 20 and 29 = ___

10. LCM of 58 and 33 = ___

11. GCF of 53 and 23 = ___

12. LCM of 47 and 36 = ___

Answer key: 1) 1 · 2) 784 · 3) 2 · 4) 76 · 5) 1 · 6) 225 · 7) 7 · 8) 1517 · 9) 1 · 10) 1914 · 11) 1 · 12) 1692

Love free resources? The free Pagine app tracks the books your child reads — kids earn streaks & badges. 📚 App Store · Google Play

← All worksheets

Free to print & share · pagineapp@mwamb.compagineapp.com

Worksheets › Grade 6 Math › GCF and LCM › GCF and LCM

Grade 6 (ages 11–12)Numbers & mathsFree printable PDF

About this grade 6 worksheet

Free Grade 6 math worksheet (Common Core 6.NS.B.4): gcf and lcm — twelve practice problems, with answer key. Skill: Find the greatest common factor and least common multiple of two whole numbers. Level: Grade 6 — also suits Year 7 (UK).

For teachers: skills & standards

CCSS 6.NS.B.4: Find the greatest common factor and least common multiple of two whole numbers
Works as a morning-work page, a centre/station activity, homework or an early-finisher task.

Frequently asked questions

Is this worksheet free?

Yes — it is free to print for home or the classroom. Sign in with a free Pagine account, then use the Print button or save it as a PDF.

What age is it for?

It is designed for Grade 6 (ages 11–12), but use it with any child who is ready.

What skills does it build?

Find the greatest common factor and least common multiple of two whole numbers.

Where can I find grade 6 books to read with it?

Pagine's free library has 20,000+ children's books you can read in the Pagine e-reader or the free Pagine app — sorted by age and grade, with free audiobooks too.

More “GCF and LCM” printables (6.ns.b.4: find the greatest common factor and least common multiple of two whole numbers)

GCF and LCM: Practice B (6.NS.B.4) · GCF and LCM: Mixed Practice & Reasoning (6.NS.B.4) · GCF and LCM: Show Your Thinking (6.NS.B.4) · GCF and LCM: Quick Check (6.NS.B.4)

All 5 gcf and lcm sheets → · Grade 6 Math: all 10 skills → · All Common Core grades

📚 Read along: 20,000+ free books in the Pagine e-reader

Pair this grade 6 worksheet with a story. Pagine's free library has 20,000+ children's books — chapter books, classics and non-fiction, classics and free audiobooks — that you can read right in the Pagine e-reader on any phone, tablet or computer, with adjustable text size and night mode. No ads.

Mother Nature's Bad Hair Day

Global Digital Library

Read free →

Lata Loves Trees

Global Digital Library

Read free →

The Water Carnival

Global Digital Library

Read free →

McGaiver the Galactic Taxi Driver

Global Digital Library

Read free →

Where Did My Home Go?

Global Digital Library

Read free →

Run Away to the Stars

Global Digital Library

Read free →

Browse free grade 6 books → · Grade 6 reading level · Free audiobooks · Middle school reading list

📱 Get the free Pagine app — log every book your child reads (scan the barcode or search), set reading goals, and watch streaks and badges grow. Download on the App Store · Get it on Google Play