You will know because all of the numbers are prime.
All of the factors are prime.
what is a factor string with 1 to 144
The longest factor string is 2x2x2x3x13. It is always best to list your factor string from the least to greatest number.
When all of the numbers are prime.
The longest factor string you can make for 231 is 3x7x11.
A factor string is a name for a number written as a product of two or more factors. In a factor string, 1 may not be used as a factor. For example, a factor string for 24 is 2 X 3 X 4, or 2 3 4.:0
The longest factor string of any composite number is its prime factorization.
7*5*4*3*2 Is the longest factor string of 840
The longest factor string of 44 is contained within the longest factor string of 132.
The longest factor string of 30 is 2 x 3 x 5.
The longest factor string of 100 is: 2*2*5*5=100