312
132
612
162
126
216
Digits are numbers.
ALL such numbers will be multiples of 9.
The units digits start with 8 and go down in steps of 2. The units digit repeats every 5 multiples, The last pair of digits repeat every 25 multiples.
Assuming no repeated digits, lowest first, 20; in any order 120; Allowing repeated digits: 216
1 set
Digits are numbers.
789,000,000,000 the answer is 12 digits 123456789101112
The largest ten digit number with no repeated digits is '9876543210'.
The digital root is the sum of all the digits in an integer, with the process repeated if required. The digital root of all multiples of 3 are themselves multiples of 3. Their fully reduced values are 3, 6 or 9.
98765432
You can make: 1 combination containing 0 digits, 7 combinations containing 1 digits, 21 combinations containing 2 digits, 35 combinations containing 3 digits, 35 combinations containing 4 digits, 21 combinations containing 5 digits, 7 combinations containing 6 digits, and 1 combinations containing 7 digits. That makes 2^7 = 128 in all.
The largest number with no repeated digits is 9,876,543,210 although it is 10 digits long, the largest 3 digit number with no repeated digits is 987
Digits - meaning numbers or fingers Digest - meaning the process by which food is taken into the body.
ALL such numbers will be multiples of 9.
The largest ten digit number with no repeated digits is '9876543210'.
1023456789
987654