84
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86 = (8 x 10) + (6 x 1)
2 x 43 = 86
prime factors of 86: 2, 43 prime factorization of 86: 2 x 43
86
The multiplication fact 1 x 85 = 85 with 1 and 85 adds to 86; The multiplication fact 2 x 84 = 168 with 2 and 84 adds to- 86; etc. But I don't quite think that is what you mean; I think you mean what are the factor pairs of 86: 1 x 86 & 2 x 43.