| 10000 = 1 x 104 | 24327 = 2.4327 x 104 |
| 1000 = 1 x 103 | 7354 = 7.354 x 103 |
| 100 = 1 x 102 | 482 = 4.82 x 102 |
| 10 = 1 x 101 | 89 = 8.9 x 101 (not usually done) |
| 1 = 100 | |
| 1/10 = 0.1 = 1 x 10-1 | 0.32 = 3.2 x 10-1 (not usually done) |
| 1/100 = 0.01 = 1 x 10-2 | 0.053 = 5.3 x 10-2 |
| 1/1000 = 0.001 = 1 x 10-3 | 0.0078 = 7.8 x 10-3 |
| 1/10000 = 0.0001 = 1 x 10-4 | 0.00044 = 4.4 x 10-4 |
| Powers of Ten |
| billions 109 = 1,000,000,000 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 = 1,000,000,000 |
| millions 106 = 1,000,000 10 x 10 x 10 x 10 x 10 x 10 = 1,000,000 |
| hundred thousands 105 = 100,000 10 x 10 x 10 x 10 x 10 = 100,000 |
| ten thousands 104 = 10,000 10 x 10 x 10 x 10 = 10,000 |
| thousands 103 = 1,000 10 x 10 x 10 = 1,000 |
| hundreds 102 = 100 10 x 10 = 100 |
| tens 101 = 10 |
| ones 100 = 1 |
| tenths 10–1 = 1/10 1/10 = 0.1 |
| hundredths 10–2 = 1/102 1/102 = 0.01 |
| thousandths 10–3 = 1/103 1/103 = 0.001 |
| ten thousandths 10–4 = 1/104 1/104 = 0.0001 |
| hundred thousandths 10–5 = 1/105 1/105 = 0.00001 |
| millionths 10–6 = 1/106 1/106 = 0.000001 |
| billionths 10–9 = 1/109 1/109 = 0.000000001 |
| Metric Prefix | Symbol | Multiplier (Traditional Notation) | Exponential | Description |
|---|---|---|---|---|
| Yotta | Y | 1,000,000,000,000,000,000,000,000 | 1024 | Septillion |
| Zetta | Z | 1,000,000,000,000,000,000,000 | 1021 | Sextillion |
| Exa | E | 1,000,000,000,000,000,000 | 1019 | Quintillion |
| Peta | P | 1,000,000,000,000,000 | 1015 | Quadrillion |
| Tera | T | 1,000,000,000,000 | 1012 | Trillion |
| Giga | G | 1,000,000,000 | 109 | Billion |
| Mega | M | 1,000,000 | 106 | Million |
| kilo | k | 1,000 | 103 | Thousand |
| hecto | h | 100 | 102 | Hundred |
| deca | da | 10 | 101 | Ten |
| base | b | 1 | 10 | One |
| deci | d | 1/10 | 10-1 | Tenth |
| cent' | c | 1/100 | 10-2 | Hundredth |
| milli | m | 1/1,000 | 10-3 | Thousandth |
| micro | P | 1/1,000,000 | 10-6 | Millionth |
| nano | n | 1/1,000,000,000 | 10-9 | Billionth |
| pico | p | 1/1,000,000,000,000 | 10-12 | Trillionth |
| femto | f | 1/1,000,000,000,000,000 | 10-15 | Quadrillionth |
| atto | a | 1/1,000,000,000,000,000,000 | 10-18 | Quintillionth |
| zepto | z | 1/1,000,000,000,000,000,000,000 | 10-21 | Sextillionth |
| yocto | y | 1/1,000,000,000,000,000,000,000,000 | 10-24 | Septillionth |