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How many positive integers less than or equal to 100 have a prime factor that is greater than 4?
There are 80 such integers.
How many positive integers less than 100 have an odd number of positive divisors?
The squares -- nine of them.
How many positive integers less than 100 and divisible by 3 are also divisible by 4?
8 of them.
What are all the integers less than 103 that have an odd number of positive divisors?
1, 4, 9, 16, 25, 36, 49, 64, 81, 100 -- the square numbers.
How many integers n greater than and less than 100 are there such that if the digits of n are reversed the resulting integer is n plus 9?
I'm assuming the question should read n greater than 10 and less than 100 and there are 8 numbers that satisfy this,1223344556677889So the answer is dhttp://www.webanswers.com/share-question.cfm?q=how-many-integers-n-greater-than-and-less-than-100-are-there-such-that-if-the-digits-of-n-are-the-is-1379ff| http://www.webanswers.com/answer/1566078/education/how-many-integers-n-greater-than-and-less-than-100-are-there-such-that-if-the-digits-of-n-are-the-is-1379ff| http://www.webanswers.com/report-abuse.cfm?q=how-many-integers-n-greater-than-and-less-than-100-are-there-such-that-if-the-digits-of-n-are-the-is-1379ff&p=1566078
What is the sum of all the digits of all the positive integers that are less than 100?
The sum of all the digits of all the positive integers that are less than 100 is 4,950.
What is the sum of all the positive numbers less than 100?
Sum of all such integers less than 100 would be 416 .
How many positive integers less than or equal to 100 have a prime factor that is greater than 4?
There are 80 such integers.
How many positive integers less than 100 have an odd number of positive divisors?
The squares -- nine of them.
How many positive integers less than 100 have exactly 4 factors?
32
How many positive integers less than 100 can be written as sum of 9 consecutive integers?
All of them from 45 to 99 ... 55 integers.
How many positive integers less than 100 and divisible by 3 are also divisible by 4?
8 of them.
What is the sum of all positive integers less than 100 that have the product of their digits equal to 4?
81
How many positive integers less than 100 have the sum of their digits equal to a perfect square?
There are 20.
What is sum of all the numbers less than 100 can be wriiten as sum of 9 consecutive positive integers?
The sum of such numbers is 504.
What positive integers less than 100 divisible by 3?
3, 6, 9... just continue adding 3 at a time.
How many positive integers less than 100 have reciprocals with terminating decimal representation?
To determine how many positive integers less than 100 have reciprocals with terminating decimal representation, we need to consider the prime factorization of each integer. Any positive integer whose prime factorization consists only of 2s and/or 5s will have a reciprocal with a terminating decimal representation. In the range of positive integers less than 100, there are 49 numbers that are powers of 2, 5, or their products (2^0, 2^1, 2^2, ..., 2^6, 5^0, 5^1, 5^2). Therefore, there are 49 positive integers less than 100 with reciprocals having terminating decimal representations.
