A number can be multiplied by multiple of nine i.e 9 18 27 36 45 ...
and the resulting number consist of only one digit.
Can you identify the number ?
12345679 X 9 = 111111111 12345679 X 18 = 222222222 12345679 X 27 = 333333333 etc
0 works for not only the multiples of 9 but for any integer.
A number can be multiplied by multiple of nine i.e 9 18 27 36 45 …
Find a 8 digit number that if multiplied by the number 9 or any of its multiplications products (18, 27, 36, 45,..) will result in the multiplication factor repeated (n) number of times.
IF 1 + 2 + 3 = 18 2 + 3 + 4 = 27 3 + 4 + 5 = 36 4 + 5 + 6 = 45 THEN: 5 + 6 + 7 = ??
When a two digit number is multiplied by sum of its digits, the product is 715 but when the reverse of a two digit number is multiplied by sum of its digits the product obtained is 99 less. What is the sum of the digits of a number?
