1641 Times (1641×) Multiplication Table
1641 times table, 1 to 20
| 1641 × 1 | 1,641 |
| 1641 × 2 | 3,282 |
| 1641 × 3 | 4,923 |
| 1641 × 4 | 6,564 |
| 1641 × 5 | 8,205 |
| 1641 × 6 | 9,846 |
| 1641 × 7 | 11,487 |
| 1641 × 8 | 13,128 |
| 1641 × 9 | 14,769 |
| 1641 × 10 | 16,410 |
| 1641 × 11 | 18,051 |
| 1641 × 12 | 19,692 |
| 1641 × 13 | 21,333 |
| 1641 × 14 | 22,974 |
| 1641 × 15 | 24,615 |
| 1641 × 16 | 26,256 |
| 1641 × 17 | 27,897 |
| 1641 × 18 | 29,538 |
| 1641 × 19 | 31,179 |
| 1641 × 20 | 32,820 |
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: 1641 × k = 1640 × k + 1 × k.
- Each answer is 1641 more than the one before, so you can count on in steps of 1641.
Building it from tables you already know
To multiply 1641 by 9, multiply by 10 and take one 1641 away: 16,410 − 1641 = 14,769. To multiply by 11, multiply by 10 and add one more 1641: 16,410 + 1641 = 18,051. Multiplying by 4 is doubling twice: 1641 → 3,282 → 6,564.
Every multiple of 1641 is at least 1641, so there are none below 100 and 0 below 1,000. A number is in the 1641 times table exactly when it divides by 1641 with no remainder.
Odd, even and the last digit
Because 1641 is odd, the answers alternate between odd and even: 1641 × 1 = 1641 is odd, 1641 × 2 = 3,282 is even, and so on. Multiplying by 10 always puts a zero on the end: 1641 × 10 = 16,410, and 1641 × 100 = 164,100. Multiplying by 5 is half of multiplying by 10: half of 16,410 is 8,205.
Using the 1641 times table to divide
Every fact also works backwards: because 1641 × 7 = 11,487, you know 11,487 ÷ 1641 = 7 and 11,487 ÷ 7 = 1641. Practising the table and its division facts together halves the work.
1641 times table practice worksheet
- 1641 × 12 = ______
- 1641 × 11 = ______
- 1641 × 3 = ______
- 1641 × 9 = ______
- 1641 × 5 = ______
- 1641 × 6 = ______
- 1641 × 7 = ______
- 1641 × 8 = ______
- 1641 × 4 = ______
- 1641 × 7 = ______
- 1641 × 3 = ______
- 1641 × 4 = ______
Answer key
- 19,692
- 18,051
- 4,923
- 14,769
- 8,205
- 9,846
- 11,487
- 13,128
- 6,564
- 11,487
- 4,923
- 6,564
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 1641 pencils. How many pencils are in 6 boxes?
Answer
6 × 1641 = 9,846 pencils. - Tickets cost $1641 each. How much do 11 tickets cost?
Answer
11 × $1641 = $18,051. - 14,769 chairs are set out in rows of 1641. How many rows are there?
Answer
14,769 ÷ 1641 = 9 rows. - A plant grows 1641 millimetres a week. How much does it grow in 6 weeks?
Answer
6 × 1641 = 9,846 millimetres.
Questions
What is 1641 × 12?
19,692.
What is half of 1641 × 8?
1641 × 8 = 13,128, and half of that is 6,564, which is 1641 × 4. Halving one factor halves the answer.
What is 1641 times 0?
0. Any number multiplied by zero is zero, because zero groups of 1641 contain nothing.
What is 1641 × 7 and 1641 × 8?
1641 × 7 = 11,487 and 1641 × 8 = 13,128. These two are the facts most people find hardest, so they are worth practising on their own.
Is 24,615 in the 1641 times table?
Yes: 24,615 ÷ 1641 = 15 with no remainder. 24,616 is not, because dividing it by 1641 leaves a remainder of 1.
How do I learn the 1641 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.