49 has three factors: 1, 7, 49
A composite number is a number that is not a prime number, ie it has more than two distinct factors. The factors of 25 are 1, 5, 25 - three distinct factors.
878 three digit numbers have an even number of factors. Every factor of a number has a pair, so there ought to be an even number of factors for every number. However, if a pair of the factors are the same number, then there will be an odd number of factors, that is if the number is a perfect square. Assuming three digit numbers are 100 to 999: From 100 to 999, the perfect squares are 102 = 100 to 312 = 961, a total of 31-10+1 = 22 numbers. So of the 999-100+1 = 900 three digit numbers, 22 have an odd number of factors, so 900-22 = 878 have an even number of factors.
A number is called a staircase composite number when it has three prime factors that have different sized digits: the first is one digit, the second is two digits and the third is three digits. For example: [7] [41] [271] x 77 777 77 777 would be the staircase composite number.
The square root of a number is the inverse of the square. For example, three squared equals nine, so the square root of nine is equal to three.
cube root
A cube root.
A square number
If a number has three factors, it's a perfect square. One of those three factors (apart from 1 and the number itself) would be the square root.
One of them would be the cube root.
A composite number has three or more factors.
No. 9 is a multiple of 3, an equal or larger number which is the product of factors.
That depends what number you started with.
The number 9: factors are 9, 3, and 1.
The smallest number that has exactly three factors is 4.
The Number of factors, (That is the number of pairs, such as 2= 1x2, 2x1), is equal to the number of rectangular arrays which can be made for each composite number. As such, the number of factors in the number 9 is 3, (1,3,9), and the number of rectangular arrays is also three (1x9, 9x1,3x3). Hope this helps!
Three factors.