Long Multiplication: 15 × 7

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

What is 15 × 7?

Answer

15 × 7 =
105

One partial product: 15 × 7 = 105. 7 × 15 gives the same 105.

15 × 7 in a column

15
×7
105

In the column: product 105.

Step by step: 15 × 7

  1. Step 1Multiply the multiplicand by the last digit of the multiplier, 7: 15 × 7 = 105.
    • 5 × 7 = 35. Write 5 and carry 3.
    • 1 × 7 = 7, plus the carried 3 makes 10. Write 0 and carry 1.
    • No digits are left, so the carried 1 is written in front: the partial product is 105.
  2. Product105

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Recalculate with different values ↑

Products of 15

MultiplicationProduct
10 × 770
11 × 777
12 × 784
13 × 791
14 × 798
15 × 7105
16 × 7112
17 × 7119
18 × 7126
19 × 7133
20 × 7140
21 × 7147
22 × 7154
23 × 7161
24 × 7168
25 × 7175
26 × 7182
27 × 7189
28 × 7196
29 × 7203

FAQ

What is 15 × 7?

15 × 7 = 105

Is 15 × 7 the same as 7 × 15?

Yes. Multiplication is commutative, so both come to 105. Only the working differs: this page multiplies by 7, which gives a single partial product.

How do you check that 15 × 7 = 105?

Divide the product back by one of the factors: 105 ÷ 7 = 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 × 7?

There is only one: the multiplier 7 has a single digit, so 15 × 7 = 105 is written straight under the line, with no addition step.

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