The answer is below:
As a string, the largest number is 7111111.
231
There is no such number. Since if x were the largest multiple of 3 and 7 then what about 2x? 2x would be a multiple of 3 since x is a multiple of 3; 2x would be a multiple of 7 since x is a multiple of 7; and 2x is bigger than x. So x cannot be the largest.
write the largest number you can make using each of the digits 7,1,0,2, and 9 just once
9876543
4- last two digits are a multiple of 4 7-take the last digit and subtract it from the rest of the number and if multiple of 7 (including 0) 8- last three digits are multiple of 8
974. If you mean the largest one with ONLY the digits 4 and 7, then 774. If it can only contain 7 and 4 but doesn't have to have both, then 777.
the largest five digit number that can be formed using the digits 7 and 9 is 97,000
87,542 is.
It's a multiple of 7 (17 x 7) but not 3 (the digits 119 don't add up to 3)
231
97