The factor of a number is less than or equal to that number.

The given statement is true: the factor of a number is always less than or equal to that number.

Explanation:
To understand this concept, let's first define what a factor is. A factor of a number is a whole number that divides the given number exactly, leaving no remainder. For example, the factors of 12 are 1, 2, 3, 4, 6, and 12.

Now, let's consider any number and its factors:

1. Factors are Divisors:
- Factors are the numbers that divide another number exactly, without leaving any remainder.
- For example, the factors of 12 divide 12 into equal parts without any remainder: 1, 2, 3, 4, 6, and 12.

2. Relationship between Factors and the Number:
- Every factor of a number is always less than or equal to that number.
- This relationship can be understood by observing that the largest factor of a number is the number itself.
- For example, the largest factor of 12 is 12 itself, and it is equal to the number.

3. Range of Factors:
- Factors can range from 1 to the number itself.
- For example, the factors of 12 are 1, 2, 3, 4, 6, and 12, which are all less than or equal to 12.

Conclusion:
Based on the above explanation, it is clear that the factors of a number are always less than or equal to the number itself. Therefore, the given statement is true.