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How do you work out the prime factors of a number?
1. Find out which numbers multiply together to reach the target number, then find out which numbers multiply together to make the numbers that multiply together to reach the target number.
Why does an even number plus an odd number always equal an odd number?
For any even number n, the following integer is odd (n+1), so for any odd number other than 1, you are adding the preceding even number, plus 1. Because all even numbers are multiples of 2, their sum is even, and 1 more will be an odd number.---Think of the odd number as an even number plus one and remember that all even numbers are multiples of two.Therefore:- Any two even numbers added together will always be a multiple of two and therefore even. Any two odd numbers added together will be the same as adding two even numbers plus 1 plus 1. (A multiple of two plus two which is still a multiple of two).An odd number added to an even number will be the same as two even numbers plus 1 in other words a multiple of two (even) plus one making the result odd.Extrapolating further it's easy to see that by the above reasoning that for all positive integers...Any number of even numbers added together will always be even.An odd number of odd numbers added together will always be odd.Any even number of odd numbers added together will always be even,Adding any number of even numbers to any number of odd numbers will make no difference to the outcome, the odd or even outcome will still be determined by the number of odd numbers being added together.---Another approach:Let n, r be real numbers even number representation: 2nodd number representation: 2n + 1sum = 2n + 2n + 1 = 4n + 1 = 2(2n) + 1let 2n = rsum representation becomes: 2r + 1, which is a representation of an odd number.
Which 2 prime numbers times together make 123?
3 and 41
How do you make composite?
Multiply together two or more prime numbers.
What two prime numbers multiplied together make 371?
7 x 53
What Two square numbers added together make 45?
9 and 36
What two prime numbers between 10 and 20 added together make a square number?
17 and 19
What are the name of the numbers added together to make a sum?
the products
What two numbers added together make 267?
260 and 7
What two numbers make 750?
1 and 749, when added together.
What two numbers make 49?
0 and 49, added together.
What two numbers make 126?
125 and 1, added together.
What two numbers make 114?
0 and 114 added together.
What two equal numbers make 105?
52.5, when added together.
What two numbers can be added together to make 22?
11+11
What 2 even numbers make an odd when added together?
It is impossible.
Which two square numbers add together to make 90?
40
