17 is a prime number and only has two factors, one and itself.
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. :)
Numbers without factors are PRIME Numbers. Taking the first ten numbers. 1,2,3,4,5,6,7,8,9,10. The prime numbers are 2,3,5,7, they have no factors. 4,6,8,9,10. Are not prime numbers as they have factors. 4 has a factor of '2' 6 has factors of '2 & 3'. 8 has factors of' 2 & 4'. or' 2,2,2.' 9 has factors of '3,3', 10 has factors of '2 5.' '1' is unique
The factors of 8 are: 1, 2, 4, 8.
The only common factors are 1 and 2.
the only common factors of both 4 and 8 are; 1,2 and 4.
108 has twelve factors, 112 has ten factors.
1, 2, 3, 4, 6, 8, 12, 16, 24, 48
81 only has five factors.
They are: -2-8 = -10
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.
Eight has four factors: 1, 2, 4 and 8
17 is a prime number and only has two factors, one and itself.
A composite number is a number with more than two positive integer factors. As such, the first ten composite numbers are: 4, 6, 8, 9, 10, 12, 14, 15, 16, 18
But 2 has only two factors which are itself and one because it is a prime number.
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.