9, 4, 2, 5 and 7
The two numbers are 6 and -5. 6 x (-5) = -30, 6 + (-5) = 1.
.25+.25=.5
5 is a prime number having 1 and 5 as its only factors. It makes no difference to the factors of 5 if the digit 5 is in composite numbers.
67 and 5
65 = 13*5, 13 and 5 are prime numbers
There are 48 prime numbers in a deck of cards.The prime numbers are 2, 3, 5, and 7. There are four suits - that makes 16. The numbers are repeated on the top and bottom of each card - that makes 32. The numbers are repeated in the number of pips on the cards - that makes 48.And you thought I was crazy. :-)>
Except for 5, all of them have 5 as a factor which makes them have more than two factors.
They are: 3 5 and 11
They are: 5 7 9 and 11 which makes four of them
They are: 2, 3, 5 and 7 which makes four of them.
They are: 2, 3, 5, 7 and 11 which makes five of them
From 1 to 10 they are: 2, 3, 5 and 7 which makes four of them