Step-by-step solution to find the factors and factor pairs of 640:
- If a whole number divides 640 evenly (remainder = 0), then it is a factor of 640 (divisor factor), and the corresponding quotient is also a factor of 640 (quotient factor)
- Divisor factors and quotient factors form a complete list of the factors and factor pairs of 640
- With the exception of 0, all whole numbers less than or equal to the square root of 640 (√640 ) are possible divisor factors of 640
- √640 = 25.2982
- Possible Divisor Factors of 640: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25
- Filter list of possible divisor factors by testing divisibility of 640 by 2, 3, 4, 5, 9, and 10
- Possible Divisor Factors of 640 (filtered): 1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 17, 19, 20, 22, 23, 25
- Divide 640 by the possible divisor factors in the filtered list
- Factors of 640: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640
- Factor Pairs of 640: (1*640) (2*320) (4*160) (5*128) (8*80) (10*64) (16*40) (20*32)
- Note: the first number in each factor pair is a divisor factor and the second number is a corresponding quotient factor
