Sieve of Eratosthenes

Can your child explain what this is? What is it used for?

Admissions and Enquiry Service

If you are interested in studying at Prem please reach us by phone at +66 5330 1500 or by email at admissions@ptis.ac.th where our team will be happy to assist you.

School Office

Mon – Fri | 8:00 – 17:00 hrs
Prem Tinsulanonda International School,
234 Moo 3, Huay Sai, Mae Rim,
Chiang Mai 50180, Thailand

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