These equal 640: 1 x 640, 2 x 320, 4 x 160, 5 x 128, 8 x 80, 10 x 64, 16 x 40, 20 x 32
80X8= 640
8 x 8
40 and 10
The factors of 640 are: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640.
If a number has equal factors, it is a perfect square and the equal factors would be square roots.
16 and -5
1 and 10 2 and 5
40 and 10
The prime factors of 640 are: 2 and 5.
1920
There are 30.48 centimetres in one foot. Therefore, rounded to two decimal places, 640 centimetres is equal to 640/30.48 = 21.00 feet.
There are 0.3048 metres in one foot. Therefore, rounded to two decimal places, 640 metres is equal to 640/0.3048 = 2099.74 feet.
80 x 8 = 640
NO, 640 ACRES IS A SQUARE MILE
The factors of 640 are: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640.
Use two of the eights to form 88. Then: 88 - 8 = 80 80 x 8 = 640
That is 640 ounces
the two factors that equal are 155 *2 by ivelisse cruz in 6th grade 2012
32X20= 640