305 can only be [exactly] divided by 5 and not 2, 3, 6, 9 nor 10.
Divisibility tests:
Last digit is 5 which is not even, so the whole number (305) not divisible by 2.
3 + 0 + 5 = 8 which is not divisible by 3, so the original number (305) is not divisible by 3.
3 + 0 + 5 = 8 which is not divisible by 9, so the original number (305) is not divisible by 9.
Divide by two and three. 2 x 2 x 3 x 3 = 36
repeated division by smallest prime numbers. divide by 2 .. 108 divide by 2 again.. 54 divide by 2 again.. 27 divide by3 .. 9 divide by 3 again .. 3 so 2x2x2x3x3x3
1, 2, 3, 5, 6, 10, 15, 30, 61, 122, 183, 305, 366, 610, 915, 1830.
72 Divide by two. 36,2 Divide by two. 18,2,2 Divide by two. 9,2,2,2 Divide by three. 3,3,2,2,2 Stop. 2 x 2 x 2 x 3 x 3 = 72
Divide by two, three and five. 1, 2, 3, 5, 6, 10, 15, 30
5, yes. 2, 3, 6, 9, 10, no.
equivalent fraction of 10 and 15 if you divide = 2/3 10 ÷ 5 = 2 15 ÷ 5 = 3
You can divide anything by anything (except zero.) In this case, it will only come out even if you divide by 2. 716 is not divisible by 3, 5, 6 or 10.
I would do it as follows:305 * 144 = (300*144) + (5*144) = 100*(3*144) + 10*(144/2) [because 5 = 10/2]= 100*(432) + 10*72 = 43200 + 720 = 43920.
It will only divide by 2 !
2/3 x 305 = 203.3 recurring (that is, 203.3333...)
It is 3 2/10.
9/10 Or 0.9
3
10/3 * 5 = 5*10/3 = 50/3 50/3 is 16+2/3 and about 16.67
The factors of 81 that are between 2 and 10 are 3 and 9.
Divide 4 by 2, then multiply by 3 and then add 4