It is possible to create a 3-digit number, without repeated digits so the probability is 1.
Without repeats there are 4 × 3 = 12 possible 2 digit numbers. With repeats there are 4 × 4 = 16 possible 2 digit numbers.
what is the least possible sum of two 4-digit numbers?what is the least possible sum of two 4-digit numbers?
There are 90 two-digit numbers... starting with 10 and ending with 99.
Assuming whole numbers and a leading zero does not count: 10,234,567
Forming three three digit numbers that use the numbers 1-9 without repeating, the highest product possible is 611,721,516. This is formed from the numbers 941, 852, and 763.
Add the two greatest possible four digit numbers. 9999 + 9999
There are seven possible digits for the first digit and 6 digits for the second (minus one digit for the digit used as the first digit) and 5 options for the last digit (minus one again for the second digit) and then you just multiply them all together to get a total possible combination of 210 numbers that are possible.
Highest 2-digit number = 99 Highest 1-digit number = 9 Highest possible sum from 2, 2-digit numbers = 198 Highest possible sum from 2, 1-digit numbers = 18
Starting at 12 and ending at 99, there are 30 two-digit numbers divisible by three.
The first digit can have 5 possible numbers, the second digit can have 4, the third 3, the fourth 2. 5