a “ palindromic integer ” is an integer that remains the same when its digits are reversed . so , for example , 43334 and 516615 are both examples of palindromic integers . how many 6 - digit palindromic integers are both even and greater than 400,000 ?
"first digit = last digit = 4 or 6 or 8 so three possibilities . . second = fifth = any of ten digits third = fourth = any of ten digits . . so total integers = 3 * 10 * 10 = 300 answer : c"
multiply(multiply(subtract(6, const_4), const_10), const_10)