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Divisibility Rules Video Lecture | Quantitative Reasoning for GRE
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FAQs on Divisibility Rules Video Lecture - Quantitative Reasoning for GRE
| 1. What are the divisibility rules for numbers on the GRE? |  |
Ans. The divisibility rules for numbers on the GRE include rules for divisibility by 2, 3, 4, 5, 6, 8, 9, and 10. These rules help determine if a number is divisible by a specific divisor without performing long division.
| 2. How can I quickly determine if a number is divisible by 2? | |
Ans. To determine if a number is divisible by 2, check if the last digit of the number is even. If the last digit is 0, 2, 4, 6, or 8, then the number is divisible by 2.
| 3. What is the divisibility rule for 3 on the GRE? | |
Ans. The divisibility rule for 3 on the GRE states that if the sum of the digits of a number is divisible by 3, then the number itself is divisible by 3. For example, if the sum of the digits of a number is 9, 12, 15, etc., then the number is divisible by 3.
| 4. How can I determine if a number is divisible by 5 on the GRE? | |
Ans. To determine if a number is divisible by 5, check if the last digit of the number is 0 or 5. If the last digit is either 0 or 5, then the number is divisible by 5.
| 5. Is there a divisibility rule for 7 on the GRE? | |
Ans. While there is no specific divisibility rule for 7 on the GRE, one approach is to subtract twice the last digit from the number formed by the remaining digits. If the result is divisible by 7, then the original number is divisible by 7. This method can be time-consuming, so it's essential to practice and develop efficient strategies for divisibility by 7.
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Dec 23, 2024 Last updated |
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