Properties Of Numbers Flashcards
1
Q
Hw can an integer ending in a be written
A
An integer ending in a can be written as 10n +a
0
2
Q
What does it mean if c is even
A
If c is even, c^2 is divisible by 4.
3
Q
What does multiplying consecutive primes (starting with 2) and adding 1 make
A
Multiplying consecutive primes (starting with 2) and adding 1 gets a prime number.
4
Q
What is an odd number^n and an even number^n
A
Odd number^n is odd (3^n is always odd)
Even number^n is even (2^n is always even)
5
Q
How can a 3 digit number be represented
A
A 3 digit number can be represented by 100n+10a+b
n is greater than or equal to 1
a is less than or equal to 9
b is between 0 and 9 (including 0 and 9)
6
Q
What can be said about numbers n(n+1)
A
It can be said that n(n+1) are consecutive, 1 is even 1 is odd
