Sumwise

1729 Times (1729×) Multiplication Table

1729 times table, 1 to 20

1729 × 11,729
1729 × 23,458
1729 × 35,187
1729 × 46,916
1729 × 58,645
1729 × 610,374
1729 × 712,103
1729 × 813,832
1729 × 915,561
1729 × 1017,290
1729 × 1119,019
1729 × 1220,748
1729 × 1322,477
1729 × 1424,206
1729 × 1525,935
1729 × 1627,664
1729 × 1729,393
1729 × 1831,122
1729 × 1932,851
1729 × 2034,580

Patterns that help you remember it

  • The last digits repeat in a cycle of 10: 9, 8, 7, 6, 5, 4, 3, 2, 1, 0.
  • Split it into tens and ones: 1729 × k = 1720 × k + 9 × k.
  • Each answer is 1729 more than the one before, so you can count on in steps of 1729.

Building it from tables you already know

To multiply 1729 by 9, multiply by 10 and take one 1729 away: 17,290 − 1729 = 15,561. To multiply by 11, multiply by 10 and add one more 1729: 17,290 + 1729 = 19,019. Multiplying by 4 is doubling twice: 1729 → 3,458 → 6,916.

Every multiple of 1729 is at least 1729, so there are none below 100 and 0 below 1,000. A number is in the 1729 times table exactly when it divides by 1729 with no remainder.

Odd, even and the last digit

Because 1729 is odd, the answers alternate between odd and even: 1729 × 1 = 1729 is odd, 1729 × 2 = 3,458 is even, and so on. Multiplying by 10 always puts a zero on the end: 1729 × 10 = 17,290, and 1729 × 100 = 172,900. Multiplying by 5 is half of multiplying by 10: half of 17,290 is 8,645.

Using the 1729 times table to divide

Every fact also works backwards: because 1729 × 7 = 12,103, you know 12,103 ÷ 1729 = 7 and 12,103 ÷ 7 = 1729. Practising the table and its division facts together halves the work.

1729 times table practice worksheet

  1. 1729 × 6 = ______
  2. 1729 × 7 = ______
  3. 1729 × 3 = ______
  4. 1729 × 3 = ______
  5. 1729 × 7 = ______
  6. 1729 × 4 = ______
  7. 1729 × 3 = ______
  8. 1729 × 9 = ______
  9. 1729 × 2 = ______
  10. 1729 × 1 = ______
  11. 1729 × 1 = ______
  12. 1729 × 1 = ______
Answer key
  1. 10,374
  2. 12,103
  3. 5,187
  4. 5,187
  5. 12,103
  6. 6,916
  7. 5,187
  8. 15,561
  9. 3,458
  10. 1,729
  11. 1,729
  12. 1,729

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 1729 pencils. How many pencils are in 8 boxes?
    Answer8 × 1729 = 13,832 pencils.
  2. Tickets cost $1729 each. How much do 9 tickets cost?
    Answer9 × $1729 = $15,561.
  3. 10,374 chairs are set out in rows of 1729. How many rows are there?
    Answer10,374 ÷ 1729 = 6 rows.
  4. A plant grows 1729 millimetres a week. How much does it grow in 12 weeks?
    Answer12 × 1729 = 20,748 millimetres.

About this page

The table, the patterns and the practice questions are all calculated for 1729 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 1729 × 12?

20,748.

What is half of 1729 × 8?

1729 × 8 = 13,832, and half of that is 6,916, which is 1729 × 4. Halving one factor halves the answer.

What is 1729 times 0?

0. Any number multiplied by zero is zero, because zero groups of 1729 contain nothing.

What is 1729 × 7 and 1729 × 8?

1729 × 7 = 12,103 and 1729 × 8 = 13,832. These two are the facts most people find hardest, so they are worth practising on their own.

Is 25,935 in the 1729 times table?

Yes: 25,935 ÷ 1729 = 15 with no remainder. 25,936 is not, because dividing it by 1729 leaves a remainder of 1.

How do I learn the 1729 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.