- Frigg triskaidekaphobia is another name for fear of Friday the 13th.
- On the one dollar bill there are 13 levels of the pyramid, 13 stars 13 arrows, 13 stripes, 13 leaves, and 13 olives.
- Apollo 13 was the only unsuccessful mission of the Americans.
- You are officially a teen at the age of 13
- In ancient Greece, Zeus is the thirteenth and most powerful god
least common multipule
Greatest common factor
- Google Images