52 lines
2 KiB
Python
52 lines
2 KiB
Python
def divide_by_one(num): # Is whole number
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return float(num).is_integer()
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def divide_by_two(num): # Take last digit, divide by two only on that
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return _get_last_digit(num) % 2 == 0
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def divide_by_three(num): # Sum each digit in number, then checking that sum is divisible by three
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return _sum_digits(num) % 3 == 0
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def divide_by_four(num): # If last two digits are divisible by four, plus a simplifier of multiplying the tens place by two
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if (num <= 10): return num % 4 == 0
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tens_place = _get_last_digit(num, 2) * 10
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ones_place = _get_last_digit(num)
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num_to_check = (tens_place * 2) + ones_place
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return num_to_check % 4 == 0
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def divide_by_five(num): # If last digit is a zero or a five return true
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last_digit = _get_last_digit(num)
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return last_digit == 0 or last_digit == 5
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def divide_by_six(num): # Same rules as dividing by three, and ensure original number is even
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num_sum = _sum_digits(num)
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return num_sum % 3 == 0 and divide_by_two(num)
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def divide_by_seven(num): # Multiply last digit by five then add unused digits to result, dividing the result by seven.
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if (num <= 100): return num % 7 == 0
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num_as_string = f"{num}"
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ones_place = _get_last_digit(num) * 5
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num_to_check = int(f"{num_as_string[:-1]}{ones_place}")
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return num_to_check % 7 == 0
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def divide_by_eight(num): # Same rules as dividing by four, but for last three digits
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if (num <= 100): return num % 8 == 0
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hundreds_place = _get_last_digit(num, 3) * 100
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tens_place = _get_last_digit(num, 2) * 10
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ones_place = _get_last_digit(num)
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num_to_check = (hundreds_place * 4) + (tens_place * 2) + ones_place
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return num_to_check % 8 == 0
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def divide_by_nine(num): # Same rules as dividing by three, but checking that sum is divisible by nine
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return _sum_digits(num) % 9 == 0
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def _get_last_digit(num, indexFromEnd = 1):
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return int(f"{num}"[-1 * indexFromEnd])
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def _sum_digits(num):
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num_string = f"{num}"
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num_sum = 0
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for digit_char in num_string:
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num_sum += int(digit_char)
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return num_sum
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