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What numbers between 1 thru 20 have 5 factors?
Just 16.
What are the square numbers between 1 and 20?
The square numbers between 1 and 20 are 1,4,9 and 16.
How many factors is there in 20?
The factors of 20 are 1,2,4,5,10 and 20. Two are odd, four are even.
What is the factors for 20 35 45?
1 and 5 are the only numbers that are factors of 20, 35, and 45.
Composite numbers between 15 and 25?
Composite numbers are positive integers greater than 1 that have more than two factors. Between 15 and 25, the composite numbers are 16, 18, 20, 21, 22, 24. These numbers can be divided evenly by factors other than 1 and themselves, making them composite.
What numbers go into both 12 and 20?
The numbers that go into both 12 and 20 are called common factors. To find the common factors of two numbers, you need to identify all the factors of each number and then determine which factors they have in common. The factors of 12 are 1, 2, 3, 4, 6, and 12, while the factors of 20 are 1, 2, 4, 5, 10, and 20. The common factors of 12 and 20 are 1, 2, and 4.
How many numbers are there between 1 and 130 that have an odd number of factors?
There are 11 numbers between 1 and 130 that have an odd number of factors: 1,4,9,16,25,36,49,64,81,100,121.
Which whole numbers have square roots between 1 and 20?
All whole numbers between 1 and 400 (=20 square).
What do the numbers 63 20 and 30 all have in common?
They are all positive two-digit whole numbers between 15 and 65. As to factors, only 1.
What do the numbers 5 and 20 have in common?
As factors, 1 and 5
How many whole numbers are factors of 20?
Six numbers. They are 1, 2, 4, 5, 10 and 20.
What are the prime numbers from 1 to 20?
The prime numbers between 1 and 20 are: 2, 3, 5, 7, 11, 13, 17 and 19. Note that a prime number has only two factors, 1 and itself and one. Number 1 is not considered to be a prime number because it has only one factor.
