Write IUPAC name of the compound having the formula `CH_3-CH=CH_2`

Explanation

To find the IUPAC name of the compound with the formula `CH3-CH=CH2`, we will follow these steps:

### Step-by-Step Solution:

1. **Identify the Structure**: The given formula `CH3-CH=CH2` indicates that there are three carbon atoms connected in a chain, with a double bond between the second and third carbon atoms.

2. **Number the Carbon Atoms**: We need to number the carbon atoms in such a way that the double bond gets the lowest possible number. Starting from the left, we can assign the numbers as follows:
- C1: CH3 (methyl group)
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