1 ESO - Unit 03 - Exercises 3.4 - Prime Factorization

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