Students

Teachers & SchoolsStudents

Teachers & SchoolsACT Math: Pre-Algebra Drill 5, Problem 2. If *a* and *b* are prime numbers, how many factors does *ab* have?

ACT Math | Pre-Algebra |

ACT Mathematics | Pre-Algebra |

Foreign Language | Arabic Subtitled Chinese Subtitled Korean Subtitled Spanish Subtitled |

Language | English Language |

Math | Pre-Algebra |

Pre-Algebra | Factors Multiples, factors of integers, and primes |

Product Type | ACT Math |

So like... let's say a is 2 and b is 3... both prime numbers.

a times b is 6, which has 4 factors: 1 and 6, but also 2 and 3.

So there are... 4.

We could try the same with a few other pairs of prime numbers, but we're always going

to arrive at the same answer.

Which is what makes math so lovely.

Answer D.

As in, "Dazzling good looks."