A digit is a numerical symbol (like "2" or "9" or even "0") that is used to write down a number that is either larger than 10 (or smaller than -10) or when writing down a decimal fraction like 0.2453). In your case there are three numerical symbols in the number 1, 4 and 7, so you can choose if you need just two.
They are: 3*49 = 147
two
42 147/7 = 21 21 x 2 = 42
-147
Any measurement may have two significant digits.
147 has factors other than 1 and itself, so it is not a prime number. For example, 147 is divisible by 3. (You can quickly check this by adding up the digits of 147: 1 + 4 + 7 = 12. If the sum of the digits is divisible by 3, so is the number.) Therefore, 147 is a composite number.
They are: 3*49 = 147
It i.s easy to see that 147 is composite. Simply add up the digits. 1 + 4 + 7 = 12. 12 is divisible by three, therefore 147 is divisible by three ! This trick also works for division by nine.
No, 3 is a factor of both. Note that the digits of 120 add up to 3 and those of 147 add up to 12. Both are multiples of 3 so the numbers 120 s and 147 are divisible by 3 and not relatively prime
two digits
There are infinitely many answers. Two examples: 1*147 10*14.7
21 and 7, 3 and 49, 147 and 1
two
1 and 147 21 and 7 3 and 49
The least common multiple of these two numbers is 147.
147 is composite because it has more than two factors.
42 147/7 = 21 21 x 2 = 42