Junior Cycle · Number Theory
Lesson 2 of 5
JCHL Number Theory 2: Prime Factorisation
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- Every natural number is a product of prime numbers
- Divide by the smallest prime that goes in (2, then 3, then 5, 7, 11…), again and again, until you reach 1
- Write the answer as a product of primes, using powers for repeats (e.g. 420 = 2² × 3 × 5 × 7)
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