The divisors of 645 are: 1, 3, 5, 15, 43, 129, 215, 645.
645 X 73 use LONG MULTIPLICATION. 645 x 73 45150 ( 70 X 645) ( multiply by '7' and then put as '0' on the end). +1935 ( 3 x 645) 47058 ===== The answer.
320 has 14 divisors.
The divisors of 79 are: 1, 79.
The divisors of 66 are 1,2,3,6,11,22,33 and 66.
The divisors of 23 are: 1, 23.
Divisors are used to divide numbers.
2,4,8 (1 and 16 are divisors too, but the number and 1 are always divisors)
The divisors of 41231 are: 1, 41231.
136 has eight divisors.
12 has six divisors.
The divisors of 66 are 1,2,3,6,11,22,33 and 66.
100,000 has 36 divisors.
The divisors of 79 are: 1, 79.
the divisors of 6 are: 1,2,3, and 6.
The divisors of 23 are: 1, 23.
600 has 24 divisors.
2 divisors: 1, 7