actually 7 is a factor of 840, because when you divide 7 into 840 you get 120 with no remainders therefore making it a factor of 840.🤡
840=2*2*2*3*5*7
32 is not a factor of 840.
7*5*4*3*2 Is the longest factor string of 840
Stings with four factor that make 840
840 = 2 x 2 x 2 x 3 x 5 x 7 OR 23 x 3 x 5 x 7
The three factor strings of 840 refer to sets of three factors that multiply together to equal 840. For example, one possible factor string is (2, 3, 140), since (2 \times 3 \times 140 = 840). Other combinations include (7, 12, 10) and (5, 12, 14). The total number of distinct factor strings can vary based on the factors chosen.
Prime factors are 2, 2, 2, 3, 5, 7 Other factors are combinations of the primes, i.e. 2 x 2 = 4 2 x 3 = 6 2 x 2 x 2 = 8 2 x 5 = 10 2 x 2 x 3 = 12 2 x 7 = 14 3 x 5 = 15 2 x 2 x 5 = 20 3 x 7 = 21 2 x 2 x 2 x 3 = 24 2 x 2 x 7 = 28 2 x 3 x 5 = 30 5 x 7 = 35 2 x 2 x 2 x 5 = 40 2 x 3 x 7 = 42 2 x 2 x 2 x 7 = 56 2 x 2 x 3 x 5 = 60 2 x 5 x 7 = 70 2 x 2 x 3 x 7 = 84 3 x 5 x 7 = 105 2 x 2 x 2 x 3 x 5 = 120 2 x 2 x 5 x 7 = 140 2 x 2 x 2 x 3 x 7 = 168 2 x 3 x 5 x 7 = 210 2 x 2 x 2 x 5 x 7 = 280 2 x 2 x 3 x 5 x 7 = 420
Multiples of 840
3 x 5 x 7 x 8 2 x 6 x 7 x 10
840/7 = 120
120
The GCF of 320 and 840 is 40.