75/15 = 5 90/15 = 6 75/90 = 5/6
69
3 x 5 x 5
5 ) 75 5 ) 15 3 ) 3 ---- 1 So the prime factors are 3 x 5 x 5
By long division.By long division.By long division.By long division.
0.2778
(75/25) / 5 = 3/5 = 0.6 75 / (25/5) = 75/5 = 15
75/15 = 5 90/15 = 6 75/90 = 5/6
69
3 x 5 x 5
Consider 75/15/3 (75/15)/3 = 5/3 = 1.66... 75/(15/3) = 75/5 = 25
The GCF of 75 and 105 is 15. This leaves you with 5 and 7 respectively after division. You can do nothing further.
5 ) 75 5 ) 15 3 ) 3 ---- 1 So the prime factors are 3 x 5 x 5
By long division.By long division.By long division.By long division.
2.5
It is the middle number in the short (5~1=5) division or outside of the box in long division.
2