Prime Factorisation and Testing for Primes

Divide by primes until you reach 1, write the answer in exponent form, and test primality by trying only the primes up to the square root.

This lesson is part of a NEXUS plan.

Log in if you already have a plan, or pick one below. You pay once with any QR Ph app (GCash, Maya, your bank) and the whole library unlocks straight away.

Plans

Pick a plan, pay once by QR Ph

The diagnostic exam stays free. Everything else is one payment, no subscription.

Lessons + CET Practice

175 worked lessons and every practice set, marked instantly.

₱499one payment

Best value

All-Access Pass

Lessons, practice, the review pack PDFs and a seat in the current live review batch.

₱1,499one payment

Compare every plan, including the review pack and live classes »