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To Start: 15 Points

To Start: 15 Points. Solve the following: 21,672 ÷ 3 = 45,225 ÷ 5 = 210,060 ÷ 10 =. 7,224. 9,045. 21,006. Chapter 4: Factors, Fractions, and Exponents. Section 4.1: Divisibility and Factors. Divisibility. One integer is divisible by another if the remainder is 0. For example:

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To Start: 15 Points

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  1. To Start: 15 Points Solve the following: 21,672 ÷ 3 = 45,225 ÷ 5 = 210,060 ÷ 10 = 7,224 9,045 21,006

  2. Chapter 4: Factors, Fractions, and Exponents Section 4.1: Divisibility and Factors

  3. Divisibility One integer is divisible by another if the remainder is 0. For example: 18 ÷ 3 = 6 with a remainder of 0.

  4. Divisibility An integer is divisible by: 2: If it ends with an even number! 5: If it ends in 5 or 0!! 10: If it ends in 0!!! Easy????

  5. Practice Is the first number divisible by the second? 567 by 2? 1015 by 5? 111,120 by 10? No Yes Yes

  6. You Try!!! Is the first number divisible by the second? 368 by 2? 1010 by 5? 111,125 by 10? Yes Yes No

  7. Divisibility An integer is divisible by: 3: If the sum of the digits is divisible by 3! Ex: Is 27 divisible by 3? 2+7=9 9 is divisible by 3, then so is 27! 9: If the sum of the digits is divisible by 9!! Ex: Is 36 divisible by 9? 3+6=9 9 is divisible by 9, then so is 36!!

  8. Practice Is the first number divisible by the second? 567 by 3? 1015 by 3? 111,123 by 9? 2,153 by 9? Yes! 18 is divisible by 3. 5+6+7=18 No! 7 is not divisible by 3. 1+0+1+5=7 Yes! 1+1+1+1+2+3=9 9 is divisible by 9. No! 2+1+5+3=11 11 is not divisible by 3.

  9. Factors What are the factors of 20? 1 x 20 2 x 10 4 x 5 So therefore the factors of 20 are: 1, 2, 4, 5, 10, and 20!!!

  10. Factors – You Try!! What are the factors of 18? 1 x 18 2 x 9 3 x 6 So therefore the factors of 18 are: 1, 2, 3, 6, 9, and 18!!!

  11. Homework!!! Page 174: 1-6, 9-12, 14-22, 29-40

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