Prime Number Magazine’s Editor is Clifford Garstang (if you want to be impressed, read his bio), and the Non-fiction Editor is Margaret MacInnis (equally impressive).
The magazine’s About Us page notes:
“PRIME NUMBER is a new literary magazine featuring distinctive fiction (flash and short stories), poetry, and non-fiction, as well as book reviews, craft essays, and interviews. The magazine will be published quarterly online and in a print annual. In addition, issues will be supplemented regularly with our Prime Decimals, consisting of flash fiction and short poems. Contributors will include both emerging and established writers. The magazine’s goal is to publish distinctive work, regardless of theme or style. Prime Number is published by Press 53.”
Definitely check out the wonderful selection of prose and poetry that appears in this issue, and in earlier issues.