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How many even integers greater than 2 and less than 20 are equal to the sum of two prime numbers?
Seven of them.
What are integers less than or equal to 2?
The integers less than or equal to 2 are: {2, 1, 0, -1, -2, -3, ...}
What is a whole number less than 40?
All positive integers less than or equal to 39 are whole numbers less than 40.
How many positive integers less than 100 have the sum of their digits equal to a perfect square?
There are 20.
How many positive integers less than 2008 have an even number of divisors?
There are 1,963 such integers. Every factor of a number has a pair. The only time there will be an odd number of factors is if one factor is repeated, ie the number is a perfect square. So the question is really asking: how many positive integers less than 2008 (in the range 1 to 2007) are not perfect squares. √2007 = 44 and a bit (it lies between 44 and 45) So there are 44 integers less than (or equal to) 2007 which are perfect squares → 2007 - 44 = 1963 integers are not perfect squares in the range 1-2007 and have an even number of factors (divisors).
is the set of integers greater than or equal to −7 and less than or equal to −1=B−26, 24, 29?
is the set of integers greater than or equal to −7 and less than or equal to −1
How many even integers greater than 2 and less than 20 are equal to the sum of two prime numbers?
Seven of them.
How would you describes the set of integers less than or equal to -1?
They are the negative integers.
How many even integers greater than two and less than twenty are equal in value to the sum of two prime numbers?
All of them.
How many positive integers less than 60 are equal to the product of a positive multiple of 5 and an even number?
Five of them.
How many positive integers less than or equal to 100 have a prime factor that is greater than 4?
There are 80 such integers.
What are integers less than or equal to 2?
The integers less than or equal to 2 are: {2, 1, 0, -1, -2, -3, ...}
Which has more elements the set of positive odd integers less than 50 or the set of positive even integers less than 50?
The set of positive odd integers.
What solution set best describes the set of integers less than or equal to -1?
The set of negative integers.
When is the product of 2 integers less than or equal than to both of two factors?
That happens when only one of the two integers is negative.
What is a whole number less than 40?
All positive integers less than or equal to 39 are whole numbers less than 40.
What time what times what equal 18?
For integers less than 18, 3 and 6.
