0
0.1268
640
81 639/1000
On earth, an object that weighs 230 lbs has a mass of 104.326 kilograms. (rounded) On the moon, an object that weighs 230 lbs has a mass of 639 kilograms. (rounded)
639.0
0
6.00
540
0.1268
639 plus 885 plus 62 plus 8791 = 10377
640
629 to the nearest tens is 630
639 is a composite number. Its positive integer factors are: 1, 3, 9, 71, 213, 639
1, 639 Then by inspection of the number 639 , we note that each number is a multiple of '3' . So '3' is a factor. Also , slightly more 'tricky'. If we add the digits of 639 ; 6 + 3 + 9 = 18 1 + 8 = 9 . This means that the number has '9' is a factor. NB This only applies to factors/multiples of '9' Finally, divide 639 by 71 and/or 213 . If you have a whole number answer (No decimals), then those numbers are also factors of 639. Hence 639/71 = 9 & 329 / 213 = 3 So allthe given numbers are factors of 639.
639.
1775