Sumwise

1721 Times (1721×) Multiplication Table

1721 times table, 1 to 20

1721 × 11,721
1721 × 23,442
1721 × 35,163
1721 × 46,884
1721 × 58,605
1721 × 610,326
1721 × 712,047
1721 × 813,768
1721 × 915,489
1721 × 1017,210
1721 × 1118,931
1721 × 1220,652
1721 × 1322,373
1721 × 1424,094
1721 × 1525,815
1721 × 1627,536
1721 × 1729,257
1721 × 1830,978
1721 × 1932,699
1721 × 2034,420

Patterns that help you remember it

  • The last digits repeat in a cycle of 10: 1, 2, 3, 4, 5, 6, 7, 8, 9, 0.
  • Split it into tens and ones: 1721 × k = 1720 × k + 1 × k.
  • Each answer is 1721 more than the one before, so you can count on in steps of 1721.

Building it from tables you already know

To multiply 1721 by 9, multiply by 10 and take one 1721 away: 17,210 − 1721 = 15,489. To multiply by 11, multiply by 10 and add one more 1721: 17,210 + 1721 = 18,931. Multiplying by 4 is doubling twice: 1721 → 3,442 → 6,884.

Every multiple of 1721 is at least 1721, so there are none below 100 and 0 below 1,000. A number is in the 1721 times table exactly when it divides by 1721 with no remainder.

Odd, even and the last digit

Because 1721 is odd, the answers alternate between odd and even: 1721 × 1 = 1721 is odd, 1721 × 2 = 3,442 is even, and so on. Multiplying by 10 always puts a zero on the end: 1721 × 10 = 17,210, and 1721 × 100 = 172,100. Multiplying by 5 is half of multiplying by 10: half of 17,210 is 8,605.

Using the 1721 times table to divide

Every fact also works backwards: because 1721 × 7 = 12,047, you know 12,047 ÷ 1721 = 7 and 12,047 ÷ 7 = 1721. Practising the table and its division facts together halves the work.

1721 times table practice worksheet

  1. 1721 × 5 = ______
  2. 1721 × 8 = ______
  3. 1721 × 11 = ______
  4. 1721 × 3 = ______
  5. 1721 × 3 = ______
  6. 1721 × 10 = ______
  7. 1721 × 8 = ______
  8. 1721 × 8 = ______
  9. 1721 × 7 = ______
  10. 1721 × 2 = ______
  11. 1721 × 10 = ______
  12. 1721 × 9 = ______
Answer key
  1. 8,605
  2. 13,768
  3. 18,931
  4. 5,163
  5. 5,163
  6. 17,210
  7. 13,768
  8. 13,768
  9. 12,047
  10. 3,442
  11. 17,210
  12. 15,489

Word problems

Times tables are most useful when you can spot them in a question. Try these, then open each one to check:

  1. A box holds 1721 pencils. How many pencils are in 7 boxes?
    Answer7 × 1721 = 12,047 pencils.
  2. Tickets cost $1721 each. How much do 5 tickets cost?
    Answer5 × $1721 = $8,605.
  3. 13,768 chairs are set out in rows of 1721. How many rows are there?
    Answer13,768 ÷ 1721 = 8 rows.
  4. A plant grows 1721 millimetres a week. How much does it grow in 9 weeks?
    Answer9 × 1721 = 15,489 millimetres.

About this page

The table, the patterns and the practice questions are all calculated for 1721 when the page is opened, so every fact on it is exact. Use the options above the worksheet to change the number of questions or the largest multiplier.

Questions

What is 1721 × 12?

20,652.

What is half of 1721 × 8?

1721 × 8 = 13,768, and half of that is 6,884, which is 1721 × 4. Halving one factor halves the answer.

What is 1721 times 0?

0. Any number multiplied by zero is zero, because zero groups of 1721 contain nothing.

What is 1721 × 7 and 1721 × 8?

1721 × 7 = 12,047 and 1721 × 8 = 13,768. These two are the facts most people find hardest, so they are worth practising on their own.

Is 25,815 in the 1721 times table?

Yes: 25,815 ÷ 1721 = 15 with no remainder. 25,816 is not, because dividing it by 1721 leaves a remainder of 1.

How do I learn the 1721 times table quickly?

Learn it in order first, then use the patterns above and practise mixed questions; a few minutes a day works better than one long session.