Long Multiplication: 15 × 9

Long Multiplication Calculator
Multiplicand (number to be multiplied)
Multiplier (number to multiply by)

What is 15 × 9?

Answer

15 × 9 =
135

One partial product: 15 × 9 = 135. 9 × 15 gives the same 135.

15 × 9 in a column

15
×9
135

In the column: product 135.

Step by step: 15 × 9

  1. Step 1Multiply the multiplicand by the last digit of the multiplier, 9: 15 × 9 = 135.
    • 5 × 9 = 45. Write 5 and carry 4.
    • 1 × 9 = 9, plus the carried 4 makes 13. Write 3 and carry 1.
    • No digits are left, so the carried 1 is written in front: the partial product is 135.
  2. Product135

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Recalculate with different values ↑

Products of 15

MultiplicationProduct
10 × 990
11 × 999
12 × 9108
13 × 9117
14 × 9126
15 × 9135
16 × 9144
17 × 9153
18 × 9162
19 × 9171
20 × 9180
21 × 9189
22 × 9198
23 × 9207
24 × 9216
25 × 9225
26 × 9234
27 × 9243
28 × 9252
29 × 9261

FAQ

What is 15 × 9?

15 × 9 = 135

Is 15 × 9 the same as 9 × 15?

Yes. Multiplication is commutative, so both come to 135. Only the working differs: this page multiplies by 9, which gives a single partial product.

How do you check that 15 × 9 = 135?

Divide the product back by one of the factors: 135 ÷ 9 = 15 exactly, with no remainder. Multiplication and division undo each other, which is what makes this check work.

What are the partial products of 15 × 9?

There is only one: the multiplier 9 has a single digit, so 15 × 9 = 135 is written straight under the line, with no addition step.

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