Question

Identifies and classifies different numbers such as odd, even, co-prime, prime and
composite numbers.
Do as directed.
1) Write Prime numbers between 20 to 30.
2) Determine if 263921 is divisible by 3.
3) State whether 15 and 37 are Co-prime numbers.
4) If a number is divisible by 5 and 12 then by which other number will it be
divisible.​

Answer 1

Answer:

hope it helps you

Step-by-step explanation:

1) prime number between 20 to 30 are 21,23,29

2) No, 263921 is not divisible by 3

3) yes, 15 is co prime no. but 37 is composite no.

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Answer 2

Answer:

1) 23,29

2) no since some of all the digits is not divisible by 3

3)yes (because they don't have any other common other than 1)

4) if a number is divisible by 5 and 12 and if those numbers happened to be coprime then that divisible by those lcm as well as the factors of those two numbers and factors of lcm number as well

that means factors of 60