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Without dividing, determine if 96,090 is divisible by 6 and explain how you know.

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Without dividing, determine if 9696,090090 is divisible by 66 and explain how you know.\newline96,090 divisible by 696,090 \square \text { divisible by } 6

Full solution

Q. Without dividing, determine if 9696,090090 is divisible by 66 and explain how you know.\newline96,090 divisible by 696,090 \square \text { divisible by } 6
  1. Check Divisibility by 22: To determine if a number is divisible by 66, it must be divisible by both 22 and 33. For a number to be divisible by 22, it must be even, which means its last digit must be 00, 22, 44, 66, or 88. For a number to be divisible by 33, the sum of its digits must be divisible by 33.\newlineLet's first check if 96,09096,090 is divisible by 22.
  2. Check Divisibility by 33: The last digit of 96,09096,090 is 00, which is an even number. Therefore, 96,09096,090 is divisible by 22.
  3. Check Sum of Digits: Now let's check if 96,09096,090 is divisible by 33 by adding its digits: 9+6+0+9+0=249 + 6 + 0 + 9 + 0 = 24.
  4. Verify Divisibility by 66: The sum of the digits, 2424, is divisible by 33 because 24÷3=824 \div 3 = 8, which is a whole number.
  5. Verify Divisibility by 66: The sum of the digits, 2424, is divisible by 33 because 24÷3=824 \div 3 = 8, which is a whole number.Since 96,09096,090 is divisible by both 22 and 33, we can conclude that 96,09096,090 is divisible by 66.

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