17, 19, 23, AND 29. TWO IS THE SMALLEST AND THE ONLY EVEN PRIME NU...

13, 17, 19, 23, and 29. Two is the smallest and the only even prime number. The number 1 is neither primenor composite.Composite NumbersThese are natural numbers that are not prime; in other words, these numbers have more than just two fac-tors. The number 1 is neither prime nor composite.Relatively PrimeTwo numbers are relatively prime if the GCF of the two numbers is 1. For example, if two numbers that arerelatively prime are contained in a fraction, that fraction is in its simplest form. If 3 and 10 are relatively prime,

3

then is in simplest form.

10

E v e n a n d O d d N u m b e r s

An even number is a number whose units digit is 0, 2, 4, 6, or 8. An odd number is a number ending in 1, 3,