Following are the distances between:
sun and saturn - `1433500000000 m`
saturn and uranus - `1439000000000` m
sun and earth - `149600000000` m
which of the three distances is the least ?

Answer

To determine which of the three distances is the least, we will convert each distance into exponential form and compare them.

### Step 1: Convert the distances into exponential form

1. **Distance between Sun and Saturn:**
- Given: `1433500000000 m`
- In scientific notation:
\[ 1433500000000 = 1.4335 \times 10^{12} \text{ m} \]

2. **Distance between Saturn and Uranus:**
- Given: `1439000000000 m`
- In scientific notation:
\[ 1439000000000 = 1.439 \times 10^{12} \text{ m} \]

3. **Distance between Sun and Earth:**
- Given: `149600000000 m`
- In scientific notation:
\[ 149600000000 = 1.496 \times 10^{11} \text{ m} \]

### Step 2: Compare the distances

Now we have the distances in scientific notation:
- Sun to Saturn: \( 1.4335 \times 10^{12} \)
- Saturn to Uranus: \( 1.439 \times 10^{12} \)
- Sun to Earth: \( 1.496 \times 10^{11} \)

### Step 3: Analyze the powers of ten

The powers of ten are:
- For Sun to Saturn and Saturn to Uranus: \( 10^{12} \)
- For Sun to Earth: \( 10^{11} \)

Since \( 10^{12} \) is greater than \( 10^{11} \), we can conclude that both distances from the Sun to Saturn and from Saturn to Uranus are greater than the distance from the Sun to Earth.

### Step 4: Compare the decimal parts

Now we need to compare the distances between Sun to Saturn and Saturn to Uranus:
- \( 1.4335 \) (Sun to Saturn)
- \( 1.439 \) (Saturn to Uranus)

Since \( 1.4335 < 1.439 \), we conclude that:
- Distance from Sun to Saturn is less than the distance from Saturn to Uranus.

### Conclusion

Thus, the least distance among the three is:
- **Distance between Sun and Earth: \( 1.496 \times 10^{11} \text{ m} \)**