What times what equals 402?

Answer 1

2 x 3 x 67 = 402

2 x 201 = 402

3 x 134 = 402

6 x 67 = 402

To solve such a problem you use prime decomposition:

This allows you to break any integer down into a multiple of prime numbers as in 2x3x67=402. Two, Three and 67 are all prime. From there to find all possible options, multiply the primes together:

2x3x67=402 --> 3x67=201 --> 2x201=402

2x3x67=402 --> 2x67=134 --> 3x134=402

2x3x67=402 --> 2x3=6 --> 6x67=402

This is under the assumption that this problem is restricted to integers. If real numbers are used, there are infinitely many solutions:

Answer 2

201 * 1, or 67 * 3

Answer 3

2 x 201 = 402

Answer 4

67 x 3