17 is a Prime number and only has two factors, one and itself.
8 only has four factors.
With the numbers: 0,1,2,3,4,5,6,7,8,9 there are 10000 four letter combination's - ten options for the first number times ten options for the second number times ten options for the third number and so on. :)
They are 1 and 17 because 17 is a prime number which has only two factors
all numbers can be broken down into its prime factors so if you want a number with 17 factors all you have to do is multiply the first 17 prime factors together 2*3*5*7*11*13*17*19*23*29*31*37*41*43*47*53*59=1922760350154212639070
17 is prime, its only factors are one and itself.
108 has twelve factors, 112 has ten factors.
2, 3, 5, 7, 11, 13, 17, 19, 23, 29
8 only has four factors.
81 only has five factors.
Yes because the product of the first 17 prime numbers will have 17 factors
129 - 112 = 17
86 has four factors: 1, 2, 43, 86
The first ten prime numbers are 2,3,5,7,11,13,17,19,23 and 29.
But 2 has only two factors which are itself and one because it is a prime number.
the only common factors of both 4 and 8 are; 1,2 and 4.
28 has only six factors: 1 2 4 7 14 28.
There are only three factors of 49, which are 1, 7, and 49. There are only two prime factors of 49, which are 7 and 7. There is only one distinct prime factor of 49, which is 7. There are not ten factors of 49.