Since 13 is a prime number, the only factors that it has are 1 and 13.
Practice math facts.
its a number!!
7 6 8 5 9 4 10 3 11 2 12 1 13 0
It is composite
26 = 64
13 is not an unlucky number it is superstitious. I love the number 13
its an integer its a whole number it is not a prime number....
composite even deficient
13 is an even #
Its the thirteenth number. It's abosolute value is 13. It's opposite is -13. If you add 87 to it, it equals 100. It's before 14. It's after 12. Its a natural number. 13x2 is 26. It's a real number. Its rational (it can be turned into a fraction). (Just for fun.) It is supposedly an unlucky number.
It is the answer to the ultimate question of life, the universe, and everything.