In a value, any non-zero digit is considered a significant digit. (Zeroes may or may not be significant.) What is the minimum number of significant digits in 828,000,000

The minimum number of significant digits in 828,000,000 is 3.

Explanation:

This is because there are 3 non-zero digits that are considered significant.

3

Explanation:

With a number such as 828,000,000 there are only three non-zero digits.

The numbers 828,000,000 are the only non-zero digits and hence, (since every non-zero digit is significant) there have to be a minimum of 3 significant figures.

The zeros in this number are not significant, so the total number of significant figures is three.