Any number that has another number for a factor has that number's factors as factors as well. Since 5 is a factor of 10, all multiples of 10 have 5 as a factor.
Well, the factors of a prime number is that they only have two factors.
Well honey, 12 can be divided by 1, 2, 3, 4, 6, and 12. It's like a buffet of options for that number. Just pick one and divide away!
31,37 are not composite
15
1764 is divisible by 1 and 4. There are probably other divisors as well. 1764 = 2x2x3x3x7x7 so it is divisible by any product of these factors as well as 1. For example it is divisible by 2x2x3x7 to give 3x7 =21
Well, darling, a prime number is a number greater than 1 that can only be divided by 1 and itself. In this case, 69 can be divided by 1, 3, 23, and 69. So, unfortunately, 69 is not a prime number. But hey, it's still a fun number to say!
Well,I know that 9999 is one number:)
You see, it will depend. On a great many other factors. You thought life was so easy? Well think again.
Write the number in terms of its prime factors. So suppose is is:Z = ap*bq*cr ...where a, b, c are prime factors and p, q, r are indices.Then the total number of factors of Z is (p+1)*(q+1)*(r+1) ...If you have fewer, you have missed some out.Alternatively,Test Z for divisibility by each integer, from 1 upwards to sqrt(Z). At each stage, make a note of any factor found as well as the quotient when it divides Z.If you are thorough, you will find all the factors. This method may be simpler but relies absolutely on systematically going through many integers as potential divisors.
The number 1111111 is a composite number. A prime number is a number greater than 1 that has no positive divisors other than 1 and itself. In the case of 1111111, it can be factored into 239 x 4649, which means it has divisors other than 1 and itself, making it composite.
Well, If we looked at this way: (224) = 16777216, so this number has exactly 24 factors. (324) = 282429536481, so this number has exactly 24 factors. (510)(210)(34) = 810000000000, so this number has exactly 24 factors.