9,999,876 is the greatest seven-digit number using four different digits.
The greatest 4-digit number with no repeated digits is... 9876
9876 is the largest four digit number you can make if all the digits must be different.
There is no such number. If the four digits are even, the entire number is even, not odd.
this question doesnt make sense
2178 * 4 = 8712
9,999,876 is the greatest seven-digit number using four different digits.
The greatest 4-digit number with no repeated digits is... 9876
The number is 36
9876 is the largest four digit number you can make if all the digits must be different.
Find a four digit number whose digits will be reversed when multiplied by nine?
There is no such number. If the four digits are even, the entire number is even, not odd.
this question doesnt make sense
It looks like you're asking what is the largest 4-digit number which has four 4's for digits - with a four digit number using four 4's, there is only one such number: 4444. Maybe I'm not understanding the wording of your question.
1,024
1023
1023