## Digits Sum Root

This filter is similar to Sum Root filter - it accepts tickets with selected sum root values calculated from first and/or last digits. Sum root is a single digit number ranging from 1 to 9. It is calculated from arithmetic sum of ticket's first or last digits of main numbers by repeatedly summing the digits of the sum value until only a single digit number is left.

Note: When playing powerball-like lotteries which draw one or more numbers from a separate pool then the powerball number(s) is not included in ticket's sum value.

### Example

When filtering with settings Sum root of last digit is: 3, 5 then:

• 01-02-03-04-05-06 - filter accepts this ticket because the sum of its last digits is 21 and the root of that sum is 3.
• 10-23-24-32-35-49 - filter accepts this ticket because the sum of its last digits is 0+3+4+2+5+9=23 and the root of that sum is 5.
• 01-02-03-04-05-07- filter rejects this ticket because the sum of its last digits is 22 with the root value of 4 which is not allowed in filter's condition.

Note: When filter with settings Sum root of first and last digits is... then the filter behaves the same way as Sum Root filter.