7x2x3x2x2x5=840
32 is not a factor of 840.
There are many numbers that go into 840. For example, 420 times 2 is 840, so the number 420 would go into 840 twice. 210 times 4 is 840 as well and can go into the number 4 times.
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The longest factor string for 840 is its prime factorization because prime factors can't be broken down any further.
7*5*4*3*2 Is the longest factor string of 840
7x2x3x2x2x5=840
You will know because all of the numbers are prime.
2 x 2 x 2 x 3 x 5 x 7
2 x 2 x 2 x 3 x 5 x 7
36 of them.
32 is not a factor of 840.
2 x 2 x 2 x 3 x 5 x 7
2 x 2 x 2 x 3 x 5 x 7
2 x 2 x 2 x 3 x 5 x 7