互素 hù sù ㄏㄨˋ ㄙㄨˋ wu6 sou3

  • (math.) coprime
  • relatively prime (having no common factor)

Stroke order

Practice writing

Draw 互 (1 of 2) — stroke by stroke.

Draw each stroke of the character in order using your mouse or finger. A hint appears after three misses.