which of the following group of numbers are all prime numbers a.2,5,15,19 b.7,17,29,49 c.3,11,23,31 d.2,3,5,9,
antoniya [11.8K]
Prime numbers are those that cannot be divided by another number (other than themselves and 1). In other words, prime numbers have factors of themselves and 1.
For example, 3 is a prime number because its only factors are 3 and 1.
6 is not a prime number because it can be factored to 3*2.
Therefore, the correct answer is c. 3,11,23,31
Answer:
You need to add more context to the question. I cannot answer it without knowing what "These scales" are.
2.) 3 1/2 cm
3.) 5 mm
4.) 1/2 cm
5.) 50 mm
6.) 5 cm
I hope this helps you hun.
Answer:
idk
Step-by-step explanation:
