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Without dividing, determine if 77,831 is divisible by 2 and explain how you know. 77,831◻ divisible by 2

Without dividing, determine if 7777,831831 is divisible by 22 and explain how you know.\newline77,831□ 77,831 \square divisible by 22

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Full solution

Q. Without dividing, determine if 7777,831831 is divisible by 22 and explain how you know.\newline77,831□ 77,831 \square divisible by 22
  1. Determine Divisibility Rule: Determine the divisibility rule for 22. The divisibility rule for 22 is that a number is divisible by 22 if its last digit (the units digit) is even (00, 22, 44, 66, or 88).
  2. Apply Rule to Number: Apply the divisibility rule for 22 to the number 77,83177,831. The last digit of 77,83177,831 is 11, which is not an even number.
  3. Conclude Divisibility: Conclude based on the divisibility rule.\newlineSince the last digit is not even, 77,83177,831 is not divisible by 22.

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