1781 Times (1781×) Multiplication Table
1781 times table, 1 to 20
| 1781 × 1 | 1,781 |
| 1781 × 2 | 3,562 |
| 1781 × 3 | 5,343 |
| 1781 × 4 | 7,124 |
| 1781 × 5 | 8,905 |
| 1781 × 6 | 10,686 |
| 1781 × 7 | 12,467 |
| 1781 × 8 | 14,248 |
| 1781 × 9 | 16,029 |
| 1781 × 10 | 17,810 |
| 1781 × 11 | 19,591 |
| 1781 × 12 | 21,372 |
| 1781 × 13 | 23,153 |
| 1781 × 14 | 24,934 |
| 1781 × 15 | 26,715 |
| 1781 × 16 | 28,496 |
| 1781 × 17 | 30,277 |
| 1781 × 18 | 32,058 |
| 1781 × 19 | 33,839 |
| 1781 × 20 | 35,620 |
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: 1781 × k = 1780 × k + 1 × k.
- Each answer is 1781 more than the one before, so you can count on in steps of 1781.
Building it from tables you already know
To multiply 1781 by 9, multiply by 10 and take one 1781 away: 17,810 − 1781 = 16,029. To multiply by 11, multiply by 10 and add one more 1781: 17,810 + 1781 = 19,591. Multiplying by 4 is doubling twice: 1781 → 3,562 → 7,124.
Every multiple of 1781 is at least 1781, so there are none below 100 and 0 below 1,000. A number is in the 1781 times table exactly when it divides by 1781 with no remainder.
Odd, even and the last digit
Because 1781 is odd, the answers alternate between odd and even: 1781 × 1 = 1781 is odd, 1781 × 2 = 3,562 is even, and so on. Multiplying by 10 always puts a zero on the end: 1781 × 10 = 17,810, and 1781 × 100 = 178,100. Multiplying by 5 is half of multiplying by 10: half of 17,810 is 8,905.
Using the 1781 times table to divide
Every fact also works backwards: because 1781 × 7 = 12,467, you know 12,467 ÷ 1781 = 7 and 12,467 ÷ 7 = 1781. Practising the table and its division facts together halves the work.
1781 times table practice worksheet
- 1781 × 11 = ______
- 1781 × 9 = ______
- 1781 × 5 = ______
- 1781 × 4 = ______
- 1781 × 7 = ______
- 1781 × 7 = ______
- 1781 × 12 = ______
- 1781 × 10 = ______
- 1781 × 6 = ______
- 1781 × 6 = ______
- 1781 × 9 = ______
- 1781 × 6 = ______
Answer key
- 19,591
- 16,029
- 8,905
- 7,124
- 12,467
- 12,467
- 21,372
- 17,810
- 10,686
- 10,686
- 16,029
- 10,686
Word problems
Times tables are most useful when you can spot them in a question. Try these, then open each one to check:
- A box holds 1781 pencils. How many pencils are in 5 boxes?
Answer
5 × 1781 = 8,905 pencils. - Tickets cost $1781 each. How much do 4 tickets cost?
Answer
4 × $1781 = $7,124. - 14,248 chairs are set out in rows of 1781. How many rows are there?
Answer
14,248 ÷ 1781 = 8 rows. - A plant grows 1781 millimetres a week. How much does it grow in 8 weeks?
Answer
8 × 1781 = 14,248 millimetres.
Questions
What is 1781 × 12?
21,372.
What is half of 1781 × 8?
1781 × 8 = 14,248, and half of that is 7,124, which is 1781 × 4. Halving one factor halves the answer.
What is 1781 times 0?
0. Any number multiplied by zero is zero, because zero groups of 1781 contain nothing.
What is 1781 × 7 and 1781 × 8?
1781 × 7 = 12,467 and 1781 × 8 = 14,248. These two are the facts most people find hardest, so they are worth practising on their own.
Is 26,715 in the 1781 times table?
Yes: 26,715 ÷ 1781 = 15 with no remainder. 26,716 is not, because dividing it by 1781 leaves a remainder of 1.
How do I learn the 1781 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.