document.write( "Question 634794: can you help me figure out to solve this??\r
\n" ); document.write( "\n" ); document.write( "Write 840 as a product of prime factors. \n" ); document.write( "
Algebra.Com's Answer #399893 by radh(108)\"\" \"About 
You can put this solution on YOUR website!
To solve this, we must figure out the factors of 840 and point out the primes:
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Solved by pluggable solver: Find factors of any number
840 is NOT a prime number: 840 = 2 * 2 * 2 * 3 * 5 * 7

Work Shown

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document.write( "840 is divisible by 2: 840 = 420 * 2.\n" );
document.write( "420 is divisible by 2: 420 = 210 * 2.\n" );
document.write( "210 is divisible by 2: 210 = 105 * 2.\n" );
document.write( "105 is divisible by 3: 105 = 35 * 3.\n" );
document.write( "35 is divisible by 5: 35 = 7 * 5.\n" );
document.write( "7 is not divisible by anything.\n" );
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This calculation used this Prime Factorization Algorithm.

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Now, with this solver, we see the prime factors making the product: (840 = 2 * 2 * 2 * 3 * 5 * 7), but to solve this ourselves, you can just make a factoring tree until you reach the primes. Multiply all the primes by each other, and you'd get a product made entirely of primes.
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I hope this helps! If you still need help, feel free to contact me. :) \n" ); document.write( "

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