This document contains math exercises asking students to find the prime factorizations of various numbers and use those factorizations to determine divisors and multiples. It includes factorizing numbers between 45 and 1,296, identifying divisors of 126, listing all divisors of 80, and writing multiples of 1111 and 4444 as prime factorizations without calculations.

1. UNIT 03 November
1. Find the prime factorization of:
a) 45 b) 60 c) 76 d) 81 e) 88 f) 98.
2. Find the prime factorization of:
a) 170 b) 350 c) 580 d) 888 e) 1,024 f) 1,296.
Axel Cotón Gutiérrez Mathematics 1º ESO Exercises – 1.3.4.1

2. UNIT 03 November
3. Find the prime factorization of 126, and then find out which one of the following
numbers are its divisors:
a) 4 b) 18 c) 21 d) 28
4. Write all the divisors of 80:
5. Write as a prime factorization three multiples of the following numbers without
doing operations.
a) 𝟏𝟏𝟏𝟏 = 𝟐𝟐𝟐𝟐
∙ 𝟑𝟑
b) 𝟒𝟒𝟒𝟒 = 𝟑𝟑𝟐𝟐
∙ 𝟓𝟓
Axel Cotón Gutiérrez Mathematics 1º ESO Exercises – 1.3.4.2