Scientific Notation Calculator › 40 in scientific notation
40 in Scientific Notation
40 = 4 × 10¹
| Standard form | 4 × 10¹ |
| Coefficient | 4 |
| Exponent | 1 |
How 40 breaks down
40 has 2 digits, so it lands in the tens — the order of magnitude 10¹. That is why the exponent is 1.
| Expanded form | 4 × 10 |
| E-notation (calculators) | 4E1 |
| Significant figures | 1 |
| Order of magnitude | 10¹ (tens) |
Reading it back: 4 × 10 = 40.
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Frequently asked questions
What is 40 in scientific notation?
40 in scientific notation is 4 × 10¹. The coefficient is 4 and the exponent is 1.
How do you convert 40 to scientific notation?
Move the decimal point so one non-zero digit stays to its left (giving 4), then count the 1 place you moved it — that is the exponent 1. So 40 = 4 × 10¹.