Seudónimo
Seudónimo
29-01-2016
Mathematics
contestada
Is 21 a prime number?
Respuesta :
sissy863
sissy863
29-01-2016
No.
7×3=21
7×1=21
A prime number can only be multiplied by 1 and itself.
Answer Link
Cortes33
Cortes33
29-01-2016
21 is not a prime number,
its a composite number because its divisible by 3 and 7
and prime numbers only have 1 and its self as factors..
Hope it helps :D
Answer Link
VER TODAS LAS RESPUESTAS ( 32+ )
Otras preguntas
What is the opposite of nitrate?
The type of learning that involves problem-solving is called _____ social learning playing insightful learning latent learning
What is the Hagia Sophia? A. the first theater established to carry on the Greek dramatic tradition in the Byzantine Empire B. a church building recognized a
Which sentence correctly uses the word "so"? A. Our seats were just perfect, so was the concert. B. The bus was late, so we walked to the station to catch the t
What does it mean if the probability is 20% that a spinner will stop in a red section? A. There is one chance in 5 that the spinner will stop in a red section.
Two buses leave a station at the time and travel in opposite directions. One bus travel 18 mi/h slower then the other l. If the two buses are 670mi apart after
‘The Freedom Rides and Freedom Marches in the early 1960s were the main reason why the Civil Rights movement made so much progress at that time.’ How far do you
Why was the Declaration of Independence important to the American Revolution war effort? A. The French decided to support the colonists. B. It had little import
Why has relying on one crop or resource presented an economic problem for many Latin American nations? How have these nations been trying to solve these probems
Which statement best describes society's view on women and education in the early 1800s?
