8 + 7 = 15, a multiple of 3, so 87 is divisible by 3.

87 is a composite number. 87 = 1 x 87 or 3 x 29. Factors of 87: 1, 3, 29, 87. Prime factorization: 87 = 3 x 29.

87 is never a clue in the FIND THE FACTORS puzzles.

This week’s puzzles and last week’s solutions: 12 Factors 2014-04-07