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How many numbers are there less than thirty have exactly 6 factors?
Four numbers less than thirty, 12, 18, 20, and 28, each have exactly 6 factors.
What numbers would have less than two factors?
Prime numbers
How many whole numbers less than 2010 have exactly three factors?
14 (I think).
How many numbers less than 10 have exactly 2 factors?
there are 3 no.2,3 & 5
What number less than 19 has more than 4 factors?
There are a few numbers that are less than 19 and have more than 4 factors. The number 10 is less than 19 and has more than four factors.
How many numbers are there less than thirty have exactly 6 factors?
Four numbers less than thirty, 12, 18, 20, and 28, each have exactly 6 factors.
How many natural numbers less than 1000 will have exactly 3 factors?
11
What numbers would have less than two factors?
Prime numbers
How many numbers less than 100 have exactly nine distinct factors?
Just 36.
How many whole numbers less than 2010 have exactly three factors?
14 (I think).
How many numbers less than 10 have exactly 2 factors?
there are 3 no.2,3 & 5
How many numbers less than 10 have 2 factors?
They are: 2 3 5 and 7 all of which are prime numbers
How many numbers which are less than 1000 have an odd number of factors?
Perfect squares have an odd number of factors. There are 31 perfect squares less than 1000.
What is special about numbers less than fifty that have less than three factors?
They all are prime numbers except 1
What number less than 19 has more than 4 factors?
There are a few numbers that are less than 19 and have more than 4 factors. The number 10 is less than 19 and has more than four factors.
How many integers less than 60 have an even number of factors?
All but the square numbers - 53 of them.
How can you determine whether the LCM of two numbers is the product of the numbers or is less than the product of the numbers explain?
If the two numbers have no common factors other than 1, the LCM will be their product. If there are other common factors, the LCM will be less.
