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GRE basic math concepts Questions with 100% correct answers | verified | latest update 2024
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GRE basic math concepts Questions with 100% correct answers | verified | latest update 2024
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GRE basic math conceptsDistinct - ANS-ex:
12 has three prime factors (2,2, and 3), but only 2 distinct factors (2 and 3).
element - ANS-one of the membres of a set
multiplying or dividing two numbers with different signs gives a - ANS-negative result
Division by zero is - ANS-undefined or "it can't be done" also applies to zero as the
denomotor.
an integer is divisible by 3 if - ANS-its digits add up to a multiple of 3
an integer is divisible by 4 if - ANS-its last two digits are a multiple of 4
an integer is divisible by 5 if - ANS-its last digit is 0 or 5
an integer is divisible by 6 if - ANS-it is divisible by both 2 and 3
an integer is divisible by 9 if - ANS-its digits add up to a multiple of 9
odd x odd = ? (pick odd/even) - ANS-odd
odd x even = ? (pick odd/even) - ANS-even
The square root of an even number must be (pick odd/even) - ANS-Even
how to find the greatest/highest common factor - ANS-break down both integers into
their prime factorizations, and multiply all the prime factors they have in common.
ex:
36=(2)(2)(3)(3), and 48= (2)(2)(2)(2)(3)
GCF= (2)(2)(3)= 12
how to find lowest common multiple - ANS-break down both integers into their prime
factorizations, and make a venn diagram of the results. Multiply all the numbers in the
diagram
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