Long Multiplication: 21 × 7
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What is 21 × 7?
Answer
21 × 7 =
147
One partial product: 21 × 7 = 147. 7 × 21 gives the same 147.
21 × 7 in a column
| 2 | 1 | ||
| × | 7 | ||
| 1 | 4 | 7 |
In the column: product 147.
Step by step: 21 × 7
- Step 1Multiply the multiplicand by the last digit of the multiplier, 7: 21 × 7 = 147.
- 1 × 7 = 7. Write 7.
- 2 × 7 = 14. Write 4 and carry 1.
- No digits are left, so the carried 1 is written in front: the partial product is 147.
- Product147
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- 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
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