Example Sentences
"The number 7 is prime because only 1 and 7 divide into it evenly."
"The prime numbers less than 20 are 2, 3, 5, 7, 11, 13, 17, and 19."
Synonyms & Related Terms
Quick Check
Which best describes the meaning of prime number?
Study Tips
To remember prime number, try writing it in a sentence of your own. Connect it to something you already know about mathematics.
Use it in conversation today — saying a word aloud three times helps lock it into long-term memory.