41 x 3 = 123, Quite basic actually.
No 5291 is not a prime using 2 numbers. It is a prime using three numbers.
I can find 13 ways, not just 7, to make 60 from adding numbers in the 4, 5 and 9 times tables.
They are: 2^4 times 3 times 5^2 times 7 = 8400
This week I learned my 4,5 and 6 times tables.
To factorise is to find the numbers that divide into the original number by only using prime numbers. For example factorise 20 = 2 times 2 times 5
Prime numbers have one factor pair, hence one rectangle.
3 x 5 x 11
Divide prime numbers into it. Start with 2. Do that four times. Then try 3. Stop.
21
2x2x3 = 12
No prime power exists since there are no duplicate prime numbers in the prime factorization.
No prime power exists since there are no duplicate prime numbers in the prime factorization.