Given any number it is easy to find a rule based on a cubic polynomial (of order 3) such that the first three numbers are as listed in the question and the next is the given number. There are also non-polynomial solutions.
The simplest quadratic is
Un = 14n2 - 24n + 35 for n = 1, 2, 3, ... and accordingly, the next number in the sequence is 163.
Its basically 89 divided by 4. 22.25 is A
89 is a prime number because it has only two factors which are itself and one
89 plus 43 plus 37 equals 169.
-64
89/25
Yeah, of course you can: 25, 34, 43, 52, 61, 70
356/100 = 178/50 = 89/25
A factor is a divisor - a number that will evenly divide into another number. One way to determine the common factors and greatest common factor is to find all the factors of the numbers and compare them. The factors of 10 are 1, 2, 5, and 10. The factors of 43 are 1 and 43. The factors of 56 are 1, 2, 4, 7, 8, 14, 28, and 56. The factors of 89 are 1 and 89. The only common factor is 1.
145
25% of $89=$22.25 25% of $159=$39.75
The answer depends on which number is missing, and on the sequencing rule. Using cubic polynomials, if it the first, it is 107; if it is the second, 93.666... recurring; if it is the third, it is 88.333... recurring; and if it is the fourth, it is 91. Of course, the rule need not be polynomial!
There is no missing number. The Fibonacci sequence continues: 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584, 4181, 6765, ...