There are 4 significant figures in this number.
Three significant figures.
6
3 of them.
Since you don't give the possible choices, I will give an example: 0.034 123 0.90 0.07003 The answer is 0.07003, which has 4 significant figures. 0.034 has 2. 123 has 3. 0.90 has 2.
29.1% if you want it to the right amount of significant figures
123. 1230/10 = 123.
Significant digits are digits that provide useful information, for instance 123 has 3 significant digits and 30010 has 4 significant digits. So basically zeros aren't significant unless they are between two other numbers. 0.1020 has only 4 significant digits. A+: 4
It is: 100
Used properly,they tell us how precise it is. The rule of thumb for significant figures is "every digit you're sure of, and one you're not". So if you're positive something is 123 and a bit, you could do 123.3 or 123.7 or whatever based on your best guess to the last digit.
123 is not a Fibonacci number.
123
123 is not a prime number because it is divisible by 41 and 3. (123/41=3 and 123/3=41)A prime number is any number that is only divisible by two factors, one and itself.123 is a composite number because its factors are 1, 3, 41, and 123.