What is the definition of a prime number, and is 1 prime?

A prime number has exactly two distinct positive factors: 1 and itself. The number 1 is NOT prime because it has only one factor.

What is the result when any integer is multiplied by zero?

The result is always zero. This holds for all integers, including negatives and zero itself.

What are the rules for the sign of a product when multiplying two integers with different signs?

A positive times a negative (or negative times a positive) always yields a negative product.

What is the Least Common Multiple (LCM) of 12 and 18?

The LCM of 12 and 18 is 36. It is found by identifying the smallest number divisible by both 12 and 18.

What is the Greatest Common Factor (GCF) of 36 and 48?

The GCF of 36 and 48 is 12. It is the largest integer that divides both numbers without a remainder.

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GRE Arithmetic & Numbers Mastery

Master the essential arithmetic and number theory concepts tested on the GRE Graduate Record Exam. This deck covers integers, fractions, decimals, percentages, ratios, and number properties with 30 high-quality flashcards designed to build both conceptual understanding and test-taking speed.

30 cards Intermediate Number Properties Fractions & Ratios Percentages Decimals & Exponents Arithmetic Operations & Word Problems

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