A giant number
No. When adding the smallest 2 digit number (= 10) to the smallest 2 digit number (again, 10) the result is a 2 digit number (10 + 10 = 20). When adding the largest 2 digit number (= 99) to the largest 2 digit number (again, 99) the result is a 3 digit number (99 + 99 = 198). As you can see, you'll either get a 2 or 3 digit number, but never a 4 digit number.
A double digit number, triple digit number........
No, when you add a two-digit number to another two-digit number, the largest sum you can get is 99 + 99 = 198, which is a three-digit number. In order to get a four-digit number, you would need to add at least a three-digit number to another three-digit number, such as 100 + 100 = 200.
A leading digit is the digit/number at the beggining of a decimal number or regular number and is the first number to the left.
One quintillion.
One quintillion.
10^18 is one quintillion.
1000000000000000000
It's one quintillion.
1000000000000000000-456734566789 = 999999543265433216
1000000000000000000-152 = 999999999999999872
Just copy all the 0s after the 1 in the first number and stick them at the end of the second number. 2,124,515,623,000,000,000,000,000,000
1000000000000000000
The answer is quintillion. Before quintillion in quadrillion then trillion. After quintillion is sextillion then septillion and so on.
Divide the two-digit number by the one-digit number. If the remainder is zero then the 2-digit number is a multiple and if not, it is not.
A giant number