Long Multiplication: 11 × 11

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What is 11 × 11?

Answer

11 × 11 =

121

2 partial products: 11 × 1 = 11 and 11 × 10 = 110.

11 × 11 in a column

		1	1
×		1	1
		1	1
+	1	1	0
	1	2	1

Step by step: 11 × 11

Step 1Multiply the multiplicand by the last digit of the multiplier, 1: 11 × 1 = 11.
- 1 × 1 = 1. Write 1.
- 1 × 1 = 1. Write 1.
Step 2The next digit of the multiplier is 1, and it stands for 10: 11 × 10 = 110.
- 1 × 1 = 1. Write 1.
- 1 × 1 = 1. Write 1.
Sum of the partial products11 + 110 = 121

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See Also

Times Table Chart - Any number from 1 to 100, rows from ×1 to ×12
Long Division Calculator - Step-by-step long division with detailed explanation
Multiplying Fractions Calculator - Multiply fractions, mixed numbers and whole numbers step by step
Factors of a Number - List all Factors and Factor Pairs of a Number
Greatest Common Factor - Find the Greatest Common Factor (GCF) of two numbers
Least Common Multiple - Find the Least Common Multiple (LCM) of two numbers

Recalculate with different values ↑

Products of 11

Multiplication	Product
11 × 1	11
11 × 2	22
11 × 3	33
11 × 4	44
11 × 5	55
11 × 6	66
11 × 7	77
11 × 8	88
11 × 9	99
11 × 10	110
11 × 11	121
11 × 12	132

FAQ

What is 11 × 11?

11 × 11 = 121

Is 121 a square number?

Yes. 11 × 11 = 121, so 121 is the square of 11. A square is simply a number multiplied by itself, which is why both factors here are the same.

How do you check that 11 × 11 = 121?

Divide the product back by one of the factors: 121 ÷ 11 = 11 exactly, with no remainder. Multiplication and division undo each other, which is what makes this check work.

What are the partial products of 11 × 11?

They are 11 + 110, and adding them gives 121.

See Also