20 is between 10 and 30.
It is: 11
23 is an odd number between 10 and 30 that gives a remainder of 2 when divided by 7.
It is: 20
Any number between 30 and 40 can be a factor. The common factors of 30 and 40 are 1, 2, 5 and 10.
37
30
It is: 11
23 is an odd number between 10 and 30 that gives a remainder of 2 when divided by 7.
It is: 20
(10+20)/2 = 30/2 = 15
A number that has exactly an odd number of factors is a power of another number. A number between 10 and 30 that is a power is 16. It is 24 (as well as 42) and its factors are 1, 2, 4, 8, and 16.
70-10=60. 60/2=30. 10+30 or 70-30=40. Answer 40
Any number between 30 and 40 can be a factor. The common factors of 30 and 40 are 1, 2, 5 and 10.
48 has 10 factors.
37
perfect square numbers are 16 and 25
From 10 to 30, there are 21 numbers.Six of them are prime numbers: 11, 13, 17, 19, 23, and 29.If you pick a number at random from 10 to 30, the probabilitythat it's a prime number is6/21 = 2/7 = 28.57% (rounded)