0
Still curious? Ask our experts.
Chat with our AI personalities
EzraFaith is not about having all the answers, but learning to ask the right questions.
Chat with Ezra
JordanLooking for a career mentor? I've seen my fair share of shake-ups.
Chat with Jordan
TaigaEvery great hero faces trials, and you—yes, YOU—are no exception!
Chat with TaigaMore answers
No, 21 is not a Prime number. It can be divided evenly by numbers other than 1 and itself, such as 3 and 7.
Add your answer:
Earn +20 ptsQ: Is 21a prime number
Write your answer...
Submit
Still have questions?
Continue Learning about Math & Arithmetic
Trending Questions
What are dependent and independent probability in math terms?
What is the area of Desertserges?
What is distribute strategically?
What is 350 plus 30 percent?
What is the two differences between a rectangle and a square?
What is 32 percent in decimal form?
What is the percent decrease of 90.00 to 81.00?
How many times do 9 go in 81?
What are OSHA 6 steps for lockout tagout?
When its day light saving time does it subtract 1 hour from day or add 1 hour for day?
How many inches is 192.5 cm?
What does a level of significance of .05 mean?
Is it possible to draw a right triangle that is obtuse?
There is 144 feet in a roll ofunderlayment how many rolls to do 1500 square roof?
How many centimetres do people normally grow in a year?
What can 34.52 be rounded to?
What is 260 as a fraction?
How are 4 and 5 the same and how are they different?
How do you change intricate into an abstract noun?
What is 50 percent added to 530?
Copyright ©2025 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.