What are the factors and prime factors of 16807?

Answer 1

factors: 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680

prime factors: 2(4), 3, 5, 7

Answer 2

To find the prime factors of a number, it is easiest to divide that number by any obvious divisors. In this case, 168 is even, so can be divided by 2. If you do this, you get 84, which is also even. Divide by 2 again and you get 42, which is also even. Divide by 2 again and you get 21. This is known from times tables to be 3x7. Thus the prime factors of 168 are:

2, 2, 2, 3 and 7.

Answer 3

Prime factors are 7, 7, 7, 7 and 7

Others are:

7 x 7 = 49

7 x 7 x 7 = 343

7 x 7 x 7 x 7= 2401

Answer 4

factors of 1700 - 1, 2, 4, 5, 10, 20, 25, 68, 85, 170, 340, 425, 850, 1700

prime factors of 1700 - 2, 2, 5, 5, 17