How do you find out if 1546 base 7 is base 7 numeral?

Answer 1

To determine if 1546 is a valid base 7 numeral, check if each digit is less than 7. In this case, the digits are 1, 5, 4, and 6, all of which are less than 7. Therefore, 1546 is indeed a valid base 7 numeral.