8 + 16 + 40 + 48 + 72 + 80 + 120 + 144 + 240 + 360 + 720 = 1848
25% of 18000 = 18000*25/100 = 4500
Factors of 25: 1, 5, 25 Their sum = 31 Difference between 31 and 8 = 23.
No, it is not... For any number to be divisible by 9, the sum of its digits must ALSO divide by 9. In this case, 8+9+4+4=25... 25 is not divisible by 9 !
The sum is 1 plus 5 = 6
No, 25 is not a prime number. It is divisible by 1, 5, and 25.
25% of 18000 = 18000*25/100 = 4500
Factors of 25: 1, 5, 25 Their sum = 31 Difference between 31 and 8 = 23.
No, it is not... For any number to be divisible by 9, the sum of its digits must ALSO divide by 9. In this case, 8+9+4+4=25... 25 is not divisible by 9 !
31
-5 and +5
The sum is 1 plus 5 = 6
No, 25 is not a prime number. It is divisible by 1, 5, and 25.
1 + 5 + 25 + 125 = 156
No, it is only divisible by 1, 5, 25, 149, 745, 3725.
25% of 18,000 is 4,500
The factors of 850 are 1, 2, 5, 10, 17, 25, 34, 50, 85, 170, 425, and 850.It is divisible by 2, for example.
6 is divisible by 1, 2, 3, and 6. 17 is prime. 25 is divisible by 1, 5 and 25. 36 is divisible by 1, 2, 3, 4, 6, 9, 12, 18, and 36.