Back to Prime Factorisation — Problem 2 · Task Set 12
Exercises: Prime Factorisation
Work through each section in order. Write every prime factorisation as a product of primes, using index (exponent) notation where a prime repeats. Verify larger factorisations by multiplying the primes back to the original number.
Grade 7·16 problems·~28 min·Uganda NCDC Primary 7 Mathematics·lesson·operations-04
Work through problems with immediate feedback
A
Recall / Warm-Up
These problems review prime and composite numbers from earlier work.
1.
How many prime numbers are there between and (not counting )?