OK, what I'm going to try and do, is to square in my head a five digit number requiring a 10 digit calculator.

Another, another three digit another three digit number, sir?

In 1980, one could factor a difficult 50 digit number at an expense of 1012 elementary computer operations.

How many digits are there in your number?

How about a two digit number?

A three digit number, sir, yes?

OK, another, another three digit number, sir?

So you should have as an answer either a six digit or probably a seven digit number.

So quickly, a two digit number please.

Yes? One more three digit number please.

Okay, how many digits do you have in your number?

OK, oh, OK you have a 10 digit calculator, sir, as well?

Arthur Benjamin 22. And another two digit number, Sir?

For example, the decimal system (base 10) has ten digits (0 through to 9), whereas binary (base 2) has two digits (0 and 1).

There was a gentleman up here who had a 10 digit calculator.

Would somebody get us started by giving us a two digit number please?

Anyone I point to, call out a three digit number.

By 1984 the state of the art in factoring algorithms had advanced to a point where a 75 digit number could be factored in 1012 operations.

Where is he, would you stand up, 10 digit guy?

AB Yes? Oh, one more, one more three digit number please.

I'm going to try to square a four digit number this time.

A set consists of 10 rods corresponding to digits 0 to 9.

Rather than you all shouting out, I want you to count how many digits there are in that number. Okay?

It actually has the number of symmetries in the Rubik's cube has 25 digits.

For example, decimal 0.1 corresponds to the infinite recurring representation 0.199999999999... in hexadecimal.

So, starting with your seven digit number, call out any six of them please.

You have a seven digit number, call out any six of them please.

And instead of squaring it this time, I want you to take that number and multiply it by any three digit number that you want, but don't tell me what you're multiplying by just multiply it by any random three digit number.

For example, a specification of the most significant 18 bits of an IPv4 address, 11111111.11111111.11000000.00000000, is written as 255.255.192.0.

As a consequence, the probability that a randomly chosen number between 1 and x is prime is inversely proportional to the number of decimal digits of x .

Thus an additional advantage of scientific notation is that the number of significant figures is clearer.

So let's start. Number 10 we lose the will to survive.

Over fifty thousand Romans died in the two battles.

Call out a single digit that will be the five digit number that I will try to square. Go ahead.

After 1942, the number reached 10 million.

In 1999 the total number of such visitors exceeded 10,000 .

It has the three fingers, the three digits.

90 percent of cases of the disease are mild leptospirosis.

The same is true for denominations that have digits in common , like the red Euros 10 and green Euros 100 banknotes .

If each of you would call out a single digit between zero and nine, that will be the four digit number that I'll square.

Now, I would attempt to square a five digit number and I can but unfortunately most calculators cannot.

An exception is the year 1994, Gibson's centennial year many 1994 serial numbers start with 94 , followed by a six digit production number.

Chip labeling and manufacture date Most integrated circuits large enough to include identifying information include four common sections the manufacturer's name or logo, the part number, a part production batch number and serial number, and a four digit code that identifies when the chip was manufactured.

Fadil earns a six figure salary.

In a given number system, if the base is an integer, the number of digits required is always equal to the absolute value of the base.