(600/20) * 15 + (4 * 5 * 2) = 490
You don't. You need at least two numbers to find a GCF.
To find 20 percent of a number, multiply the number by 0.2. In this instance, 0.2 x 490 = 98. Therefore, 20 percent of 490 is equal to 98.
490 is an even number.
1,2,5,10, 70, 490, Etc. Etc...
It is 490 when rounded to the nearest whole number and not 489
The highest common factor of the numbers 490 and 630 is 70.
489.612 rounded to the nearest whole number = 490
They are: 2*5*7*7 = 490
529
That number rounds to 490 or 500. Numbers from 1-4 round downwards and number 5-9 round upwards.
It is not possible to give a sensible answer to this question. The highest common factor (HCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question!
70 and 7